UPSC Prelims Past Year Paper 2018: Paper 2 (CSAT)


80 Questions MCQ Test UPSC Previous Year Question Papers | UPSC Prelims Past Year Paper 2018: Paper 2 (CSAT)


Description
This mock test of UPSC Prelims Past Year Paper 2018: Paper 2 (CSAT) for UPSC helps you for every UPSC entrance exam. This contains 80 Multiple Choice Questions for UPSC UPSC Prelims Past Year Paper 2018: Paper 2 (CSAT) (mcq) to study with solutions a complete question bank. The solved questions answers in this UPSC Prelims Past Year Paper 2018: Paper 2 (CSAT) quiz give you a good mix of easy questions and tough questions. UPSC students definitely take this UPSC Prelims Past Year Paper 2018: Paper 2 (CSAT) exercise for a better result in the exam. You can find other UPSC Prelims Past Year Paper 2018: Paper 2 (CSAT) extra questions, long questions & short questions for UPSC on EduRev as well by searching above.
QUESTION: 1

Consider the following three - dimensional figure:
 
Q. How many triangles does the above figure have?

Solution:

20 by counting the triangles with bold lines and doubling it.

QUESTION: 2

Consider the following sum:
•+1 • 1+ 2 • + • 3+ • 1 = 21 •
Q. ​In the above sum, • stands for

Solution:

Given :  
 • +1 • +2 • + 3 + • 1 = 21 •
Using base 10 system to solve this.
There are five terms to add. First we write each term in expanded form.
Tens place multiply by 10.
Let • be n 
Replace • with n form equation 
• +1 • +2 • + 3 + • 1 = 21 •
n + 1n + 2n + n3 + n1 = 21n
Expand each term using the base ten system.
n + 10 + n + 20 + n +10n + 3 + 10n + 1 = 210 + n
23n + 34 = 210 + n 
22n = 176 
n = 8 
If • replace with 8 then we get the result.
Hence, the • (dot) stands for digit 8.
 

QUESTION: 3

Consider the following pattern of numbers:
8 10 15 13
6  5   7   4
4  6   8   8
6 11 16  ?
Q. What is the number at? In the above pattern?

Solution:

The correct answer is A as Please observe the column 1
8 - 6 + 4  = 6
Column 2
10 - 5 + 6 = 11
Column 3
15 - 7 +8 = 16
so in column 4 , it will be
13 - 4 + 8 = 17
17 is answer

QUESTION: 4

How many diagonals can be drawn by joining the vertices of an octagon?

Solution:

The correct option is A.
an octagon has 8(8−3)/2 = 8×5/2 = 20 diagonals

QUESTION: 5

The figure drawn below gives the velocity graphs of two vehicles A and B. The straight line OKP represents the velocity of vehicle A at any instant, whereas the horizontal straight line CKD represents the velocity of vehicle B at any instant. In the figure, D is the point where perpendicular from P meets the horizontal line CKD such that PD =1/2LD:

Q. ​What is the ratio between the distances covered by vehicles A and B in the time interval OL?

Solution:

C is the correct option.
Distance = Velocity × Time
So, the area under velocity-time graph gives the distance. In the time interval OL,
Distance covered by vehicle B = area of rectangle COLD = OL × LD
Distance covered by vehicle A = area of triangle POL = ½ OL × PL
=  ½ OL × (PD + LD)
=  ½ OL × (½LD + LD)
= 3/4 OL × LD
 

QUESTION: 6

A train 200 metres long is moving at the rate of 40 kmph. In how many seconds will it cross a man standing near the railway line?

Solution:

The correct answer is D as 
time = Length of train / speed of train
time = 0.20 km / 40 km/h
time = (0.20 / 40) h
time = 5×10⁻³ h and to convert it to seconds just multiply it by 3600 s/h
time = 5×10⁻³ h * 3600 s/h the unit h is cancelled and the unit seconds remain
time = 18 seconds

QUESTION: 7

Your answers to these items should be based on the passages only.
Passage-1
Global population was around 1.6 billion in 1990—today it is around 7.2 billion and growing. Recent estimates on population growth predict a global population of 9.6 billion in 2050 and 10.9 billion in 2100. Unlike Europe and North America, where only three to four per cent of population is engaged in agriculture, around 47 per cent of India’s population is dependent upon agriculture. Even if India continues to do well in the service sector and the manufacturing sector picks up, it is expected that around 2030 when India overtakes China as the world’s most populous country, nearly 42 per cent of India’s population will still be predominantly dependent on agriculture.

Q. Which of the following is the most logical and rational inference that can be made from the above passage?

Solution:
QUESTION: 8

Your answers to these items should be based on the passages only.
Passage-2
Many pathogens that cause foodborne illnesses are unknown. Food contamination can occur at any stage from farm to plate. Since most cases of food poisoning go unreported, the true extent of global foodborne illnesses is unknown. Improvements in international monitoring have led to greater public awareness, yet the rapid globalization of food production increases consumers’ vulnerability by making food harder to regulate and trace. “We have the world on our plates”, says an official of WHO.
Q. Which of the following is the most logical corollary to the above passage?

Solution:
QUESTION: 9

Your answers to these items should be based on the passages only.
Passage-3
I am a scientist, privileged to be somebody who tries to understand nature using the tools of science. But it is also clear that there are some really important questions that science cannot really answer, such as: Why is there something instead of nothing? Why are we here? In those domains, I have found that faith provides a better path to answers. I find it oddly anachronistic that in today’s culture there seems to be a widespread presumption that scientific and spiritual views are incompatible.
​Q. Which of the following is the most logical and rational inference that can be made from the above passage?

Solution:
QUESTION: 10

​Your answers to these items should be based on the passages only.
Passage-4
Though I have discarded much of past tradition and custom, and am anxious that India should rid herself of all shackles that bind and contain her and divide her people, and suppress vast numbers of them, and prevent the free development of the body and the spirit; though I seek all this, yet I do not wish to cut myself off from that past completely. I am proud of that great inheritance that has been and is, ours and I am conscious that I too, like all of us, am a link in that unbroken chain which goes back to the dawn of history in the immemorial past of India.
Q. The author wants India to rid herself of certain past bonds because

Solution:
QUESTION: 11

Graph given below which shows imports of three different types of steel over a period of six months of a year. Study the graph and answer the three items that follow.

The figures in the brackets indicate the average cost per ton over six months period.
Q. By how much (measured in thousands of tons) did the import of sheet steel exceed the import of coil steel in the first three months of the year?

Solution:
QUESTION: 12

Graph given below which shows imports of three different types of steel over a period of six months of a year. Study the graph and answer the three items that follow.

The figures in the brackets indicate the average cost per ton over six months period.
​Q. What was the approximate total value (in $) of sheet steel imported over the six months period?

Solution:
QUESTION: 13

Graph given below which shows imports of three different types of steel over a period of six months of a year. Study the graph and answer the three items that follow.

The figures in the brackets indicate the average cost per ton over six months period.
​Q. What was the approximate ratio of sheet steel and scrap steel imports in the first three months of the year?

Solution:
QUESTION: 14

Rotated positions of a single solid are shown below. The various faces of the solid are marked with different symbols like dots, cross and line. Answer the three items that follow the given figures.

​Q. What is the symbol on the face opposite to that containing a single dot?

Solution:
QUESTION: 15

Rotated positions of a single solid are shown below. The various faces of the solid are marked with different symbols like dots, cross and line. Answer the three items that follow the given figures.

​Q. What is the symbol on the face opposite to that containing two dots?

Solution:
QUESTION: 16

Rotated positions of a single solid are shown below. The various faces of the solid are marked with different symbols like dots, cross and line. Answer the three items that follow the given figures.

​Q. What is the symbol on the face opposite to that containing the cross?

Solution:
QUESTION: 17

​Your answers to these items should be based on the passage only.
It is no longer enough for us to talk about providing for universal access to education. Making available schooling facilities is an essential prerequisite, but is insufficient to ensure that all children attend school and participate in the learning process. The school may be there, but children may not attend or they may drop out after a few months. Through school and social mapping, we must address the entire gamut of social, economic, cultural and indeed linguistic and pedagogic issues, factors that prevent children from weaker sections and disadvantaged groups, as also girls, from regularly attending and complementing elementary education. The focus must be on the poorest and most vulnerable since these groups are the most disempowered and at the greatest risk of violation or denial of their right to education. The right to education goes beyond free and compulsory education to include quality education for all. Quality is an integral part of the right to education. If the education process lacks quality, children are being denied their right. The Right of Children to Free and Compulsory Education Act lays down that the curriculum should provide for learning through activities, exploration and discovery. This places an obligation on us to change our perception of children as passive receivers of knowledge, and to move beyond the convention of using textbooks as the basis of examinations. The teaching learning process must become stress-free, and a massive programme for curricular reform should be initiated to provide for a child-friendly learning system, that is more relevant and empowering. Teacher accountability systems and processes must en sure that children are learning, and that their right to learn in a child-friendly environment is not violated. Testing and assessment systems must be reexamined and redesigned to ensure that these do not force children to struggle between school and tuition centres, and bypass childhood.
=> According to the passage, which of the following is/are of paramount importance under the Right to Education?
​1. Sending of children to school by all parents
2. Provision of adequate physical infrastructure in schools
3. Curricular reforms for developing childfriendly learning system
Q. Select the correct answer using the code given below.

Solution:

C is the correct option.Right to Education is of paramount importance- Curricular reforms for developing childfriendly learning system.The process of making changes to the curriculum with the intent of making learning and teaching more meaningful and effective.

QUESTION: 18

​Your answers to these items should be based on the passage only.
It is no longer enough for us to talk about providing for universal access to education. Making available schooling facilities is an essential prerequisite, but is insufficient to ensure that all children attend school and participate in the learning process. The school may be there, but children may not attend or they may drop out after a few months. Through school and social mapping, we must address the entire gamut of social, economic, cultural and indeed linguistic and pedagogic issues, factors that prevent children from weaker sections and disadvantaged groups, as also girls, from regularly attending and complementing elementary education. The focus must be on the poorest and most vulnerable since these groups are the most disempowered and at the greatest risk of violation or denial of their right to education. The right to education goes beyond free and compulsory education to include quality education for all. Quality is an integral part of the right to education. If the education process lacks quality, children are being denied their right. The Right of Children to Free and Compulsory Education Act lays down that the curriculum should provide for learning through activities, exploration and discovery. This places an obligation on us to change our perception of children as passive receivers of knowledge, and to move beyond the convention of using textbooks as the basis of examinations. The teaching learning process must become stress-free, and a massive programme for curricular reform should be initiated to provide for a child-friendly learning system, that is more relevant and empowering. Teacher accountability systems and processes must en sure that children are learning, and that their right to learn in a child-friendly environment is not violated. Testing and assessment systems must be reexamined and redesigned to ensure that these do not force children to struggle between school and tuition centres, and bypass childhood.
Q. With reference to the above passage, the following assumptions have been made:
1. The Right to Education guarantees teachers’ accountability for the learning process of children.
2. The Right to Education guarantees 100% enrolment of children in the schools.
3. The Right to Education intends to take full advantage of demographic dividend.
Q. ​Which of the above assumptions is/ are valid?

Solution:
QUESTION: 19

​Your answers to these items should be based on the passage only.
It is no longer enough for us to talk about providing for universal access to education. Making available schooling facilities is an essential prerequisite, but is insufficient to ensure that all children attend school and participate in the learning process. The school may be there, but children may not attend or they may drop out after a few months. Through school and social mapping, we must address the entire gamut of social, economic, cultural and indeed linguistic and pedagogic issues, factors that prevent children from weaker sections and disadvantaged groups, as also girls, from regularly attending and complementing elementary education. The focus must be on the poorest and most vulnerable since these groups are the most disempowered and at the greatest risk of violation or denial of their right to education. The right to education goes beyond free and compulsory education to include quality education for all. Quality is an integral part of the right to education. If the education process lacks quality, children are being denied their right. The Right of Children to Free and Compulsory Education Act lays down that the curriculum should provide for learning through activities, exploration and discovery. This places an obligation on us to change our perception of children as passive receivers of knowledge, and to move beyond the convention of using textbooks as the basis of examinations. The teaching learning process must become stress-free, and a massive programme for curricular reform should be initiated to provide for a child-friendly learning system, that is more relevant and empowering. Teacher accountability systems and processes must en sure that children are learning, and that their right to learn in a child-friendly environment is not violated. Testing and assessment systems must be reexamined and redesigned to ensure that these do not force children to struggle between school and tuition centres, and bypass childhood.
Q. According to the passage, which one of the following is critical in bringing quality in education?

Solution:
QUESTION: 20

​Your answers to these items should be based on the passage only.
It is no longer enough for us to talk about providing for universal access to education. Making available schooling facilities is an essential prerequisite, but is insufficient to ensure that all children attend school and participate in the learning process. The school may be there, but children may not attend or they may drop out after a few months. Through school and social mapping, we must address the entire gamut of social, economic, cultural and indeed linguistic and pedagogic issues, factors that prevent children from weaker sections and disadvantaged groups, as also girls, from regularly attending and complementing elementary education. The focus must be on the poorest and most vulnerable since these groups are the most disempowered and at the greatest risk of violation or denial of their right to education. The right to education goes beyond free and compulsory education to include quality education for all. Quality is an integral part of the right to education. If the education process lacks quality, children are being denied their right. The Right of Children to Free and Compulsory Education Act lays down that the curriculum should provide for learning through activities, exploration and discovery. This places an obligation on us to change our perception of children as passive receivers of knowledge, and to move beyond the convention of using textbooks as the basis of examinations. The teaching learning process must become stress-free, and a massive programme for curricular reform should be initiated to provide for a child-friendly learning system, that is more relevant and empowering. Teacher accountability systems and processes must en sure that children are learning, and that their right to learn in a child-friendly environment is not violated. Testing and assessment systems must be reexamined and redesigned to ensure that these do not force children to struggle between school and tuition centres, and by pass childhood.
​Q. What is the essential message in this passage?

Solution:
QUESTION: 21

If LSJXVC is the code for MUMBAI, the code for DELHI is

Solution:
QUESTION: 22

If RAMON is written as 12345 and DINESH as 675849, then HAMAM will be written as

Solution:

B is the correct option. The code is to be written as-
H- 9
A- 2
M- 3
A- 2
M- 3

QUESTION: 23

If X is between -3 and -1, and Y is between - 1 and 1, then X2 - Y2 is in between which of the following?

Solution:

Answer is (d). 
If X is between -3, -1 
Then X2 is between 1 to 9 
If Y is between -1, 1 
Then Y2 is between 0, 1 
⇒ X2 – Y2 is between 0, 9.
 

QUESTION: 24

X and Y are natural numbers other than 1, and Y is greater than X. Which of the following represents the largest number?

Solution:

The correct option is A.

QUESTION: 25

Read the following information and answer the two items that follow.


The plan of an office block for six officers A, B, C, D, E and F is as follows : Both B and C occupy offices to the right of the corridor (as one enters the office block) and A occupies on the left of the corridor. E and F occupy offices on opposite sides of the corridor but - their offices do not face each other. The offices of C and D face each other. E does not have a corner office. Fs office is further down the corridor than A’s, but on the same side.

Q. If E sits in his office and faces the corridor, whose office is to his left?

Solution:

                 D      A     F

Entrance    Corridor

                 C      E      B

If E faces the corridor, person to his left is C.

QUESTION: 26

Read the following information and answer the two items that follow.
The plan of an office block for six officers A, B, C, D, E and F is as follows : Both B and C occupy offices to the right of the corridor (as one enters the office block) and A occupies on the left of the corridor. E and F occupy offices on opposite sides of the corridor but - their offices do not face each other. The offices of C and D face each other. E does not have a corner office. Ps office is further down the corridor than A’s, but on the same side.
​Q. Who is/are F’s immediate neighbour/ neighbours?

Solution:
QUESTION: 27

Passage-1 ‘Desertification’ is a term used to explain a process of decline in the biological productivity of an ecosystem, leading to total loss of productivity. While this phenomenon is often linked to the arid, semi-arid and sub-humid ecosystems, even in the humid tropics, the impact could be most dramatic. Impoverishment of human-impacted terrestrial ecosystems may exhibit itself in a variety of ways : accelerated erosion as in the mountain regions of the country, salinization of land as in the semi-arid and arid ‘green revolution’ areas of the country, e.g., Haryana and western Uttar Pradesh, and site quality decline—a common phenomenon due to general decline in tree cover and monotonous monoculture of rice/wheat across the Indian plains. A major consequence of deforestation is that it relates to adverse alterations in the hydrology and related soil and nutrient losses. The consequences of deforestation invariably arise out of site degradation through erosive losses. Tropical Asia, Africa and South America have the highest levels of erosion. The already high rates for the tropics are increasing at an alarming rate (e.g., through the major river systems— Ganga and Brahmaputra, in the context), due to deforestation and land management practices subsequent to forest clearing. In the mountain context, the declining moisture retention of the mountain soils, drying up of the ‘underground springs and smaller rivers in the Himalayan could be attributed to drastic changes the forest cover. An indirect consequence is drastic alteration in the uplandlowland interaction, mediated through water. The current concern the tea planter of Assam has is about the damage to tea plantations due to frequent inundation along the flood-plains of Brahmaputra, and the damage to tea plantation and the consequent loss in tea productivity is due to rising level of the river bottom because of siltation and the changing course of the river system. The ultimate consequences of site desertification are soil degradation, alteration in available water’ and its quality, and the consequent decline in food, fodder and fuelwood yields essential for the economic wellbeing of rural communities.
=> According to the passage, which of the following are the consequences of decline in forest cover?
1. Loss of topsoil
2. Loss of smaller rivers
3. Adverse effect on production
4. Declining of groundwater.
Q. Select the correct answer using the code given below.
 

Solution:
QUESTION: 28

Passage-1 ‘Desertification’ is a term used to explain a process of decline in the biological productivity of an ecosystem, leading to total loss of productivity. While this phenomenon is often linked to the arid, semi-arid and sub-humid ecosystems, even in the humid tropics, the impact could be most dramatic. Impoverishment of human-impacted terrestrial ecosystems may exhibit itself in a variety of ways : accelerated erosion as in the mountain regions of the country, salinization of land as in the semi-arid and arid ‘green revolution’ areas of the country, e.g., Haryana and western Uttar Pradesh, and site quality decline—a common phenomenon due to general decline in tree cover and monotonous monoculture of rice/wheat across the Indian plains. A major consequence of deforestation is that it relates to adverse alterations in the hydrology and related soil and nutrient losses. The consequences of deforestation invariably arise out of site degradation through erosive losses. Tropical Asia, Africa and South America have the highest levels of erosion. The already high rates for the tropics are increasing at an alarming rate (e.g., through the major river systems— Ganga and Brahmaputra, in the context), due to deforestation and land management practices subsequent to forest clearing. In the mountain context, the declining moisture retention of the mountain soils, drying up of the ‘underground springs and smaller rivers in the Himalayan could be attributed to drastic changes the forest cover. An indirect consequence is drastic alteration in the uplandlowland interaction, mediated through water. The current concern the tea planter of Assam has is about the damage to tea plantations due to frequent inundation along the flood-plains of Brahmaputra, and the damage to tea plantation and the consequent loss in tea productivity is due to rising level of the river bottom because of siltation and the changing course of the river system. The ultimate consequences of site desertification are soil degradation, alteration in available water’ and its quality, and the consequent decline in food, fodder and fuelwood yields essential for the economic wellbeing of rural communities.
=> Which of the following is/are the nor inference/ inferences that can be made from the passage?
1. Deforestation can cause changes in the course of rivers.
2. Salinization of land takes place to human activities only.
3. Intense monoculture practice in plains is a major reason for desertification in Tropical Asia, Africa and South America.
​Q. Select the correct answer using the cc given below.

Solution:
QUESTION: 29

Passage-1 ‘Desertification’ is a term used to explain a process of decline in the biological productivity of an ecosystem, leading to total loss of productivity. While this phenomenon is often linked to the arid, semi-arid and sub-humid ecosystems, even in the humid tropics, the impact could be most dramatic. Impoverishment of human-impacted terrestrial ecosystems may exhibit itself in a variety of ways : accelerated erosion as in the mountain regions of the country, salinization of land as in the semi-arid and arid ‘green revolution’ areas of the country, e.g., Haryana and western Uttar Pradesh, and site quality decline—a common phenomenon due to general decline in tree cover and monotonous monoculture of rice/wheat across the Indian plains. A major consequence of deforestation is that it relates to adverse alterations in the hydrology and related soil and nutrient losses. The consequences of deforestation invariably arise out of site degradation through erosive losses. Tropical Asia, Africa and South America have the highest levels of erosion. The already high rates for the tropics are increasing at an alarming rate (e.g., through the major river systems— Ganga and Brahmaputra, in the context), due to deforestation and land management practices subsequent to forest clearing. In the mountain context, the declining moisture retention of the mountain soils, drying up of the ‘underground springs and smaller rivers in the Himalayan could be attributed to drastic changes the forest cover. An indirect consequence is drastic alteration in the uplandlowland interaction, mediated through water. The current concern the tea planter of Assam has is about the damage to tea plantations due to frequent inundation along the flood-plains of Brahmaputra, and the damage to tea plantation and the consequent loss in tea productivity is due to rising level of the river bottom because of siltation and the changing course of the river system. The ultimate consequences of site desertification are soil degradation, alteration in available water’ and its quality, and the consequent decline in food, fodder and fuelwood yields essential for the economic wellbeing of rural communities.
=> With reference to ‘desertification’, as described in the passage, the following assumptions have been made:
1. Desertification is a phenomenon in tropical areas only.
2. Deforestation invariably leads to floods and desertification.
Q. Which of the above assumptions is are valid?

Solution:
QUESTION: 30

Passage-2
A diversity of natural assets will be needed to cope with climate change and ensure productive agriculture, forestry, and fisheries. For example, crop varieties are needed that perform well under drought, heat, and enhanced CO2. But the private sector and farmer-led process of choosing crops favours homogeneity adapted to past or current conditions, not varieties capable of producing consistently high yields in warmer, wetter, or drier conditions. Accelerated breeding programmes are needed to conserve a wider pool of genetic resources of existing crops, breeds, and their wild relatives. Relatively intact ecosystems, such as forested catchments, mangroves, wetlands, can buffer the impacts of climate change. Under a changing climate, these ecosystems are themselves at risk, and management approaches will need to be more proactive and adaptive. Connections between natural areas, such as migration corridors, may be needed to facilitate species movements to keep up with the change in climate.
=> With reference to the above passage, which of the following would assist us in coping with the climate change?
1. Conservation of natural water sources
2. Conservation of wider gene pool
3. Existing crop management practices
4. Migration corridors
​Q. Select the correct answer using the code given below.

Solution:
QUESTION: 31

Passage-2
A diversity of natural assets will be needed to cope with climate change and ensure productive agriculture, forestry, and fisheries. For example, crop varieties are needed that perform well under drought, heat, and enhanced CO2. But the private sector and farmer-led process of choosing crops favours homogeneity adapted to past or current conditions, not varieties capable of producing consistently high yields in warmer, wetter, or drier conditions. Accelerated breeding programmes are needed to conserve a wider pool of genetic resources of existing crops, breeds, and their wild relatives. Relatively intact ecosystems, such as forested catchments, mangroves, wetlands, can buffer the impacts of climate change. Under a changing climate, these ecosystems are themselves at risk, and management approaches will need to be more proactive and adaptive. Connections between natural areas, such as migration corridors, may be needed to facilitate species movements to keep up with the change in climate.
=> With reference to the above passage, the following assumptions have been made:
1. Diversification of livelihoods acts as a coping strategy for climate change.
2. Adoption of monocropping practice leads to the extinction of plant varieties and their wild relatives.
​Q. Which of the above assumptions is/are valid?

Solution:
QUESTION: 32

Passage-3
Today, the top environmental challenge is a combination of people and their aspirations. If the aspirations are more like the frugal ones we had after the Second World War, a lot more is possible than if we view the planet as a giant shopping mall. We need to get beyond the fascination with glitter and understand that the planet works as a biological system.
​Q. Which of the following is the most crucial and logical inference that can be made from the above passage?

Solution:
QUESTION: 33

Passage-4
Some people believe that leadership is a quality which you have at birth or not at all. This theory is false, for the art of leadership can be acquired and can indeed be taught. This discovery is made in time of war and the results achieved can surprise even the instructors. Faced with the alternatives of going left or right, every soldier soon grasps that a prompt decision either way is better than an endless discussion. A firm choice of direction has an even chance of being right while to do nothing will be almost certainly wrong.
Q. The author of the passage holds the view that

Solution:
QUESTION: 34

A number consists of three digits of which the middle one is zero and their sum is 4. If the number formed by interchanging the first and last digits is greater than the number itself by 198, the difference between the first and last digits is

Solution:
QUESTION: 35

A solid cube of 3 cm side, painted on all its faces, is cut up into small cubes of 1 cm side. How many of the small cubes will have exactly two painted faces?

Solution:

If you cut the cube into 1 cm cubes, each side will have nine squares. Every corner will have 3 painted faces and every middle piece 1 painted face. That means each edge will have one piece with two painted faces. On a cube there are 12 edges, thus there will be 12 small cubes with 2 painted faces on it.

QUESTION: 36

While writing all the numbers from 700 to 1000, how many numbers occur in which the digit at hundred’s place is greater than the digit at ten’s place, and the digit at ten’s place is greater than the digit at unit’s place?

Solution:

The correct option is C.
For numbers from 700 to 1000, the digit at hundreds place can be 7, 8 or 9. So, three possibilities are there.
Now, for the digit at ten's place to be greater than the digit at the unit's place, total numbers are equal to the value of tens digit. For example, for 2 at ten's digit, numbers can be 20, 21 (total 2). Similarly, for 6 at ten's place, numbers can be 60, 61, 62, 63, 64, 65 (total 6). 
When the first digit is 7, total numbers are = 1 + 2 + 3 + 4 + 5 + 6 = 21
When the first digit is 8, total numbers are = 1 + 2 + 3 + 4 + 5 + 6 + 7 = 28
When the first digit is 9, total numbers are = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 = 36
Therefore, required total numbers = 21 + 28 + 36 = 85.
 

QUESTION: 37

If Pen < Pencil, Pencil < Book and Book > Cap, then which one of the following is always true?

Solution:
QUESTION: 38

A bookseller sold ‘a’ number of Geography textbooks at the rate of ` x per book, ‘a + 2’ number of History textbooks at the rate of ` (x + 2) per book and ‘a - 2’ number of Mathematics textbooks at the rate of ` (x - 2) per book. What is his total sale in `?

Solution:
QUESTION: 39

A bag contains 15 red balls and 20 black balls. Each ball is numbered either 1 or 2 or 3. 20% of the red balls are numbered 1 and 40% of them are numbered 3. Similarly, among the black balls, 45% are numbered 2 and 30% are numbered 3. A boy picks a ball at random. He wins if the ball is red and numbered 3 or if it is black and numbered 1 or 2. What are the chances of his winning?

Solution:
QUESTION: 40

Two persons, A and B are running on a circular track. At the start, B is ahead of A and their positions make an angle of 30° at the centre of the circle. When A reaches the point diametrically opposite to his starting point, he meets B. What is the ratio of speeds of A and B, if they are running with uniform speeds?

Solution:
QUESTION: 41

A student has to get 40% marks to pass in an examination. Suppose he gets 30 marks and fails by 30 marks, then what are the maximum marks in the examination?

Solution:

Marks scored = 30
To pass 30 more marks required .
That means pass marks = 60
Which is 40% of total marks
Let total marks be x
Then, 40%of x=60
=> 0.4x = 60
=> x = 60 / 0.4 = 150

QUESTION: 42

19 boys turn out for playing hockey. Of these, 11 are wearing hockey shirts and 14 are wearing hockey pants. There are no boys without shirts and/ or pants. What is the number of boys wearing full uniform?

Solution:

C is the correct option.If that is the case, then let the number of boys turning in proper jerseys and proper shorts be “x”.
Eleven boys are wearing proper jerseys, but they may not be wearing proper shorts.
Therefore, the number of boys wearing only proper jerseys = 11-x.
Similarly, the number of boys wearing only proper shorts = 14 - x.
Total number of boys = Number of boys wearing only proper jerseys + number of boys wearing only proper shorts + number of boys wearing both proper jerseys and proper shorts.
Therefore, 19 = (11-x) + (14-x) + x
So, 19 = 25 - x
So, x = 6
 

QUESTION: 43

A, B, C and D are students. They are studying in four different cities, viz., P, Q, R and .f not necessarily in that order). They are studying in Science college, Arts college, Commerce college and Engineering college (not necessarily in that order), which are situated in four different States, viz., Gujarat, Rajasthan,Assam and Kerala (not necessarily in that order). Further, it is given that
i. D is studying in Assam
ii. Arts college is located in city S which is in Rajasthan
iii. A is studying in Commerce college
iv. B is studying in city Q v. Science college is located in Kerala.
Q. A is studying in

Solution:
QUESTION: 44

A, B, C and D are students. They are studying in four different cities, viz., P, Q, R and .f not necessarily in that order). They are studying in Science college, Arts college, Commerce college and Engineering college (not necessarily in that order), which are situated in four different States, viz., Gujarat, Rajasthan,Assam and Kerala (not necessarily in that order). Further, it is given that
i. D is studying in Assam
ii. Arts college is located in city S which is in Rajasthan
iii. A is studying in Commerce college
iv. B is studying in city Q v. Science college is located in Kerala.
Q. Science college is located in

Solution:

The correct option is B.
Student   City      College    State
A           Commerce    Gujarat
B        Q      Science    Kerala 
C        S      Arts                Rajasthan 
D           Engineering    Assam

QUESTION: 45

A, B, C and D are students. They are studying in four different cities, viz., P, Q, R and .f not necessarily in that order). They are studying in Science college, Arts college, Commerce college and Engineering college (not necessarily in that order), which are situated in four different States, viz., Gujarat, Rajasthan,Assam and Kerala (not necessarily in that order). Further, it is given that
i. D is studying in Assam
ii. Arts college is located in city S which is in Rajasthan
iii. A is studying in Commerce college
iv. B is studying in city Q v. Science college is located in Kerala.
Q. C is studying in

Solution:
QUESTION: 46

​A, B, C and D are students. They are studying in four different cities, viz., P, Q, R and .f not necessarily in that order). They are studying in Science college, Arts college, Commerce college and Engineering college (not necessarily in that order), which are situated in four different States, viz., Gujarat, Rajasthan,Assam and Kerala (not necessarily in that order). Further, it is given that
i. D is studying in Assam
ii. Arts college is located in city S which is in Rajasthan
iii. A is studying in Commerce college
iv. B is studying in city Q v. Science college is located in Kerala.
Q. Which one of the following statements is correct?

Solution:
QUESTION: 47

​A, B, C and D are students. They are studying in four different cities, viz., P, Q, R and .f not necessarily in that order). They are studying in Science college, Arts college, Commerce college and Engineering college (not necessarily in that order), which are situated in four different States, viz., Gujarat, Rajasthan,Assam and Kerala (not necessarily in that order). Further, it is given that
i. D is studying in Assam
ii. Arts college is located in city S which is in Rajasthan
iii. A is studying in Commerce college
iv. B is studying in city Q v. Science college is located in Kerala.
Q. Which one of the following statements is correct regarding Engineering college?

Solution:
QUESTION: 48

​A, B, C and D are students. They are studying in four different cities, viz., P, Q, R and .f not necessarily in that order). They are studying in Science college, Arts college, Commerce college and Engineering college (not necessarily in that order), which are situated in four different States, viz., Gujarat, Rajasthan,Assam and Kerala (not necessarily in that order). Further, it is given that
i. D is studying in Assam
ii. Arts college is located in city S which is in Rajasthan
iii. A is studying in Commerce college
iv. B is studying in city Q v. Science college is located in Kerala.
Q. Which one of the following statements is correct?

Solution:
QUESTION: 49

Your answers to these Items should be based on the passages only.
All actions to address climate change ultimately involve costs. Funding is vital in order for countries like India to design and implement adaptation and mitigation plans and projects. The problem is more severe for developing countries like India, which would be one of the hardest hit by climate change, given its need to finance development. Most countries do indeed treat climate change as real threat and are striving to address it in a more comprehensive 4 integrated manner with the limited resources at their disposal.
=> With reference to the above passage, the following assumptions have been made:
1. Climate change is not a challenge for developed countries.
2. Climate change is a complex policy issue and also a development issue for many countries. Ways and means of finance must be found to enable developing countries to enhance their adaptive capacity.
Q. ​Which of the above assumptions is/ are valid?

Solution:

The passage clearly mentions that 'most countries' are 'striving' to address climate change threat. So, it is a complex policy issue an development issue for all. So, 1 is not valid but 2 is.
Assumptions 3 can be made from, 'the problem is more severe... finance development. So, the right option is (c).

QUESTION: 50

Cooking with biomass and coal in India is now recognized to cause major health problems, with women and children in poor populations facing the greatest risk. There are more than 10 lakh premature deaths each year from household air pollution due to polluting cooking fuels with another 1·5 lakh due to their contribution to general outdoor air pollution in the country. Although the fraction of the Indian population using clean cooking fuels, such as LPG, natural gas and electricity, is slowly rising, the number using polluting solid fuels as their primary cooking fuel has remained static for nearly 30 years at about 70 crore.
Q. Which of the following is the most crucial and logical inference that can be made from the above passage?

Solution:
QUESTION: 51

Scientific knowledge has its dangers, but so has every great thing. Over and beyond the dangers with which it threatens the present, it opens up as nothing else can, the vision of a possible happy world; a world without poverty, without war, with little illness. Science, whatever unpleasant consequences it may have by the way, is in its very nature a liberator.
​Q. Which one of the following is the most important implication of the passage?

Solution:
QUESTION: 52

​The Arctic’s vast reserves of fossil fuel, fish and minerals are now accessible for a longer period in a year. But unlike Antarctica, which is protected from exploitation by the Antarctic Treaty framed during the Cold War and is not subject to territorial claims by any country, there is no legal regime protecting the Arctic from industrialization, especially at a time when the world craves for more and more resources. The distinct possibility of ice-free summer has prompted countries with Arctic coastline to scramble for great chunks of the melting ocean.
Q. Which one of the following is the most important implication of the passage?

Solution:
QUESTION: 53

Being a member of the WTO, India is bound by the agreements that have been signed and ratified by its members, including itself. According to Article 6 of the Agriculture Agreement, providing minimum support prices for agricultural products is considered distorting and is subject to limits. The subsidy arising from ‘minimal supports’ cannot exceed 1 O per cent of the value of agricultural production for developing countries. PDS in India entails minimum support prices and public stockholding of food grains. It is possible that, in some years, the subsidy to producers will exceed 10 per cent of the value of agricultural production.
​Q.What is the crucial message conveyed by the above passage?

Solution:
QUESTION: 54

India’s educational system is modelled on the mass education system that developed in the 19th century in Europe and later spread around the world. The goal of the system is to condition children as ‘good’ citizens and productive workers. This suited the industrial age that needed the constant supply of a compliant workforce with a narrow set of capabilities. Our educational institutes resemble factories with bells, uniforms and batch-processing of learners, designed to get learners to conform. But, from an economic point of view, the environment today is very different. It is a complex, volatile and globally interconnected world.
=> With reference to the above passage, the following assumptions have been made
1. India continues to be a developing country essentially due to its faulty education system. 2. Today’s learners need to acquire newage skill-sets. 3. A good number of Indians go to some developed countries for education because the educational systems there are a perfect reflection of the societies in which they function.
Q. Which of the above assumptions is/ are valid?

Solution:
QUESTION: 55

The practice of dieting has become an epidemic; everyone is looking out for a way to attain that perfect body. We are all different with respect to our ethnicity, genetics, family history, gender, age, physical and mental and spiritual health status, lifestyles and preferences. Thereby we also differ in what foods we tolerate or are sensitive to. So we really cannot reduce so many complexities into one diet or diet book. This explains the failure of diets across the world in curbing obesity. Unless the reasons for w eight gain are well understood and addressed and unless habits are changed permanently, no diet is likely to succeed.
Q. What is the most logical and rational inference that can be made from the above passage?

Solution:
QUESTION: 56

Monoculture carries great risks. A single disease or pest can wipe out swathes of the world’s food production, an alarming prospect given that its growing and wealthier population will eat 70% more by 2050. The risks are magnified by the changing climate. As the planet warms and monsoon rains intensify, farmlands in Asia will flood. North America will suffer more intense droughts, and crop diseases will spread to new latitudes.
​Q. Which of the following is the most logical, rational and crucial message given by the passage?

Solution:
QUESTION: 57

A shopkeeper sells an article at Rs. 40 and gets X% profit. However, when he sells it at Rs. 20, he faces same percentage of loss. What is the original cost of the article?

Solution:
QUESTION: 58

There are 24 equally spaced points lying on the circumference of a circle. What is the maximum number of equilateral triangles that can be drawn by taking sets of three points as the vertices?

Solution:
QUESTION: 59

Consider the sequence given below:
4/12/95, 1/1/96, 29/1/96, 26/2/96,….
what is the next term of the series?

Solution:
QUESTION: 60

Twelve equal squares are placed to fit in at rectangle of diagonal 5 cm. There are three rows containing four squares each. No gaps are left between adjacent squares. What is the area of each square?

Solution:
QUESTION: 61

Consider the following graph:

Q. Which one of the following statements is not correct with reference to the graph given above?

Solution:
QUESTION: 62

​For a sports meet, a winners’ stand comprising three wooden blocks is in the following form There are six different colours available to choose from and each of the three wooden blocks is to be painted such that no two of them has the same colour. In how many different ways can the winners’ stand be painted?

Solution:
QUESTION: 63

Consider the following graph in which the birthrate and death rate of a country are given, and answer the two items that follow.

​Looking at the graph, it can be inferred that from 1990 to 2010

Solution:
QUESTION: 64

Consider the following graph in which the birthrate and death rate of a country are given, and answer the two items that follow.

​=> With reference to the above graph, consider the following statements considering 1970 as base year:
1. Population has stabilized after 35 years.
2. Population growth rate has stabilized after 35 years.
3. Death rate has fallen by 10% in the first 10 years
4. Birth rate has stabilized after 35 years.
Q. ​Which of the above are the most logical and rational statements that can be made from the above graph?

Solution:
QUESTION: 65

Average hourly earnings per year (E) of the workers in a firm are represented in figures A and B as follows:


From the figures, it is observed that the

Solution:
QUESTION: 66

Consider the figures given below:

To fit the question mark, the correct answer is

Solution:

A is the correct option

QUESTION: 67

Consider the following figures A and B The manufacturing cost and projected sales for a product are shown in the above figures A and B respectively.


Q. ​What is the minimum number of pieces that should be manufactured to avoid a loss?

Solution:
QUESTION: 68

A lift has the capacity of 18 adults or 30 children. How many children can board the lift with 12 adults?​

Solution:
QUESTION: 69

A person bought a refrigerator worth Rs.22,800 with 12.5% interest compounded yearly. At the end of first year he paid Rs.8,650 and at the end of second year Rs. 9,125. How much will he have to pay at the end of third year to clear the debt?

Solution:

The correct answer is D as Refrigerator amount = Rs 22800
Given
Interest rate = 12.5%
Thereafter first year interest will be Rs 2850
Now we have to calculate Principal
= 22800 + 2850 - 8650
= Rs 17000
Thereafter interest of second year
= 12.5 percent of 17000
= Rs 2125
Now again we have
Principal :-
= 17000 + 2125 - 9125
= Rs 10000
Thereafter interest third year
= 12.5 percent of 10000
= Rs 1250
Pay at the end of 3rd year to clear the debt
= 10000 + 1250
= Rs 11250

QUESTION: 70

Consider the following figures

Solution:
QUESTION: 71

Consider the following graphs. The curves in the graphs indicate different age groups in the populations of two countries A and B over a period of few decades :


With reference to the above graphs, which of the following are the most logical and rational inferences that can be made?
1. Over the last two and a half decades, the dependency ratio for country B has decreased.
2. By the end of next two and a half decades, the dependency ratio of country A will be much less than that of country B.
3. In the next two decades, the workforce relative to its total population will increase in country B as compared to country A.
Q. Select the correct answer using the code given below.

Solution:
QUESTION: 72

​Lakshmi, her brother, her daughter and her son are badminton players. A game of doubles is about to begin :
i. Lakshmi’s brother is directly across the net from her daughter.
ii. Her son is diagonally across the net from the worst player’s sibling.
iii. The best player and the worst player are on the same side of the net.
Q. Who is the best player?

Solution:
QUESTION: 73

The graph given below indicates the changes in key policy rates made by Central Bank several times in a year:

​Q. Which one of the following can be the most likely reason for the Central Bank for such an action?

Solution:
QUESTION: 74

The following table gives the GDP growth rate and Tele-density data of different States of a country in a particular year. Study the table and answer the two items that follow.

=> With reference to the above table, which of the following is/are the most logical and rational inference/ inferences that can be made?
1. Higher per capita income is generally associated with higher Tele-density.
2. Higher GDP growth rate always ensures higher per capita income.
3. Higher GDP growth rate does not necessarily ensure higher Tele-density.
Q. ​Select the correct answer using the code given below.

Solution:
QUESTION: 75

The following table gives the GDP growth rate and Tele-density data of different States of a country in a particular year. Study the table and answer the two items that follow.

=> With reference to the above table, the following assumptions have been made :
1. Nowadays, prosperity of an already high performing State cannot be sustained without making further large investments in its telecom infrastructure.
2. Nowadays, a very high Tele-density is the most essential condition for promoting the business and economic growth in a State.
​Q. Which of the above assumptions is/are valid?

Solution:
QUESTION: 76

The following graph indicates the composition of our tax revenue for a period of two decades:

With reference to the above graph, which of the following is/are the most logical and rational inference/ inferences that can be made?
1. During the given period, the revenue from Direct Taxes as percentage of gross tax revenue has increased while that of Indirect Taxes decreased.
2. The trend in the revenue from Excise Duty demonstrates that the growth of manufacturing sector has been negative during the given period.
Q. Select the correct answer using the code given below.

Solution:
QUESTION: 77

If x – y = 8, then which of the following must be true?
1. Both x and y must be positive for any value of x and y.
2. If x is positive, y must be negative for any value of x and y.
3. If x is negative, y must be positive for any value of x and y.
​Q. Select the correct answer using the code given below.

Solution:
QUESTION: 78

Read the following two passages and answer the items that follow. Your answers to these items should be based on the passages only.
Passage—I
The quest for cheap and plentiful meat has resulted in factory farms where more and more animals are squeezed into smaller lots in cruel and shocking conditions. Such practices have resulted in many of the world’s health pandemics such as the avian flu. Worldwide, livestock are increasingly raised in cruel, cramped conditions, where animals spend their short lives under artificial light, pumped full of antibiotics and growth hormones, until the day they are slaughtered. Meat production is waterintensive. 15000 litres of water is needed for every kilogram of meat compared with 3400 litres for rice, 3300 litres for eggs and 255 litres for a kilogram of potatoes.
Q. What is the most rational and crucial message given by the passage?

Solution:
QUESTION: 79

Read the following two passages and answer the items that follow. Your answers to these items should be based on the passages only.
Passage-2
A male tiger was removed from Pench Tiger Reserve and was relocated in Panna National Park. Later, this tiger trekked toward his home 250 miles away. The trek of this solitary tiger highlights a crisis. Many wildlife reserves exist as islands of fragile habitat in a vast sea of humanity, yet tigers can range over a hundred miles, seeking prey, mates and territory. Nearly a third of India’s tigers live outside tiger reserves, a situation that is dangerous for both human and animal. ‘Prey and tigers can only disperse if there are recognized corridors of land/ between protected areas to allow unmolested passage.
Q. Which of the following is the most rational and crucial message given by the passage?

Solution:
QUESTION: 80

Read the following two passages and answer the items that follow. Your answers to these items should be based on the passages only.
Passage-2
A male tiger was removed from Pench Tiger Reserve and was relocated in Panna National Park. Later, this tiger trekked toward his home 250 miles away. The trek of this solitary tiger highlights a crisis. Many wildlife reserves exist as islands of fragile habitat in a vast sea of humanity, yet tigers can range over a hundred miles, seeking prey, mates and territory. Nearly a third of India’s tigers live outside tiger reserves, a situation that is dangerous for both human and animal. ‘Prey and tigers can only disperse if there are recognized corridors of land/ between protected areas to allow unmolested passage.
=> With reference to the above passage, the following assumptions have been made:
1. The strategy of conservation of wildlife by relocating them from one protected area to another is not often successful.
2. India does not have suitable legislation to save the tigers, and its conservation efforts have failed which forced the tigers to live outside protected areas.
​Q. Which of the above assumptions is/are valid?

Solution: