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# SSC CGL Tier 1 Mock Test - 25

## 100 Questions MCQ Test SSC CGL Tier 1 - Mock Test Series 2017 | SSC CGL Tier 1 Mock Test - 25

Description
This mock test of SSC CGL Tier 1 Mock Test - 25 for SSC helps you for every SSC entrance exam. This contains 100 Multiple Choice Questions for SSC SSC CGL Tier 1 Mock Test - 25 (mcq) to study with solutions a complete question bank. The solved questions answers in this SSC CGL Tier 1 Mock Test - 25 quiz give you a good mix of easy questions and tough questions. SSC students definitely take this SSC CGL Tier 1 Mock Test - 25 exercise for a better result in the exam. You can find other SSC CGL Tier 1 Mock Test - 25 extra questions, long questions & short questions for SSC on EduRev as well by searching above.
QUESTION: 1

Solution:
QUESTION: 2

### Select the related letter/word/number from the given alternatives. 68 : 130 : : ? : 350

Solution:

As, 68 = (4)3+ 4
130 = (5)3+ 5
and 350 = (7)3+ 7
Therefore, ? = (6)3+ 6 = 222

QUESTION: 3

### Select the related letter/word/number from the given alternatives. 123 : 132 : : 235 : ?

Solution:

As, 123+ 32 = 123 + 9 = 132
So, 235+ 52 = 235 + 25 = 260

QUESTION: 4

Select the related letter/word/number from the given alternatives.

Sound : Muffled :: ? : ?

Solution:

Second is the process of gradual disappearances of the first.

QUESTION: 5

Directions (Q. Nos. 5 - 7) : Find the odd word/letter/ number from the given alternatives.

Solution:

All except Park are halting places of various transport means.

QUESTION: 6

Find the odd word/letter/ number from the given alternatives.

Solution:

All except New York are capital cities .

QUESTION: 7

Find the odd word/letter/ number from the given alternatives.

Solution:

12306 ⇒ 1 x 2 x 3 = 06
23212 ⇒ 2 x 3 x 2 = 12
32424 ⇒ 3 x 2 x 4 = 24
41206 ⇒ 4 x 1 x 2 = 08

QUESTION: 8

Directions (Q. No. - 8) : Some statements are given here which are followed by two conclusions. You have to consider the two statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follow from the given statements.

Statements :

All the actors are girls.
All the girls are beautiful.

Conclusions :

I. All the actors are beautiful.
II. Some girls are actors.

Solution:

Both I and II follows.

QUESTION: 9

Two cars start from the opposite direction of a 150 kms main road. First car runs for 25 km, takes a right turn and then runs 15 km. It then turns left and runs for another 25 km. Again it moves back towards the main road.  In the mean time, due to minor break down the other car has run only 35 km along the main road. What would be the distance between two cars at this point

Solution:

Required distance = EF
= 150 – (25 + 25 + 35)
= 150 – 85
= 65 kms

QUESTION: 10

Which of the following diagrams, indicates the best relation between Judge, Thieves and Criminals?

Solution:

QUESTION: 11

A \$ B means A is the father of B.  A # B means A is the sister of B. A * B means A is the daughter of B and A @ B means A is the brother of B. Which of the following indicates that M is the wife of Q

Solution:

Q \$ R ⇒ Q is the father of R
R @ T ⇒ R is the brother of T
Hence ⇒ Q is t he fat her of T
T * M ⇒ T is the daughter of M
Hence ⇒ M is the mother of T
Hence, M is the wife of Q.

QUESTION: 12

If 361324 = 37 and 484169 = 315, then 625196 = ?

Solution:

QUESTION: 13

Here two positions of dice are shown. If two dots are in the bottom, then how many dots will be on the top.

Solution:

Here the common faces with 4 dots are in same positions.
Hence 2 will be opposite to 5.

QUESTION: 14

Five girls are sitting on a bench for photography. Seema is to the left of Rani and to the right of Bindu. Mary is to the right of Rani. Reeta is between Rani and Mary. Who is sitting in the middle for the photography

Solution:

Bindu  Seema  Rani  Reeta  Mary

QUESTION: 15

If Blue means Pink, Pink means Green, Green means Yellow, Yellow means Red, Red means White and White means Purple then what is the colour of milk

Solution:

As the colour of the milk is white and it is given that ‘red means white’. So, the colour of milk is red.

QUESTION: 16

Directions (Q. Nos. 16-17) : In the questions given below, find out the missing number from the given responses.

Solution:

As, 7 × 8 × 3 = 168 (in first row)
and 9 × 6 × 5 = 270 (in second row)
Similarly, 6 × 7 × ? = 126 (in third row)

QUESTION: 17

Find out the missing number from the given responses.

Solution:

As, 4 × 3 + 2 = 14
and 7 × 3 + 4 = 25
Similarly, 9 × ? + 6 = 42

QUESTION: 18

If RACKET is written as 813524 in a certain code, how would TRACK be written in that code.

Solution:

QUESTION: 19

From the given alternative words, select the word which can be formed using the letters of the given word.

Solution:

QUESTION: 20

Arrange the following words in alphabetical order.

1. Wou nd    2. Winter
3. White      4. Worst
5. Worked

Solution:

3, 2, 5, 4, 1

QUESTION: 21

P, Q, R and S are four friends, P is shorter than Q but taller than R, who is shorter than S. Who is the shortest among all

Solution:

Q > P > R
S > R
Clearly, R is the shortest.

QUESTION: 22

Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it.

_ bc _ ca _ aba _ c _ ca

Solution:

ab c / b c a/ c a b/ a b c/ b c a

QUESTION: 23

How many rectangle in a figure.

Solution:
QUESTION: 24

A piece of paper is folded and cut as shown below in the question figures. From the given answer figures, indicate how it will appear when opened.

Solution:
QUESTION: 25

A word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as in two matrices given below. The columns and rows of Matrix I are numbered from 0 to 4 and that of Matrix II are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, 'C' can be represented by 02, 21etc., and 'T' can be represented by 65, 96, etc. Similarly you have to identify the correct set for the word given in each question 'PAST'

Solution:
QUESTION: 26

Where is the headquarters of Botanical survey of India located

Solution:

The Botanical Survey was formally instituted on 13 February 1890 under the direction of Sir George King, who had been superintendent of Royal Botanic Garden, Calcutta since 1871.
King became the first ex-officio Director of BSI. The Calcutta Garden became the headquarters of the Survey and was given regional responsibility for Bengal, Assam, North East, Burma, and the Andaman and Nicobar Islands.

QUESTION: 27

“Burning of Candle” is an example of-

Solution:
QUESTION: 28

The 3960 (MW) Tilaiya Ultra Mega Power Project (UMPP) is located in which state

Solution:

Tilaiya project is a 3, 960 Mega watt (MW) Ultra Mega Power Project (UMPP) in Jharkhand. It was to be commissioned in 2012 but got delayed due to array of reasons.

QUESTION: 29

Who among the following founded the India Society of Oriental Art to revive the ancient art traditions of India

Solution:

Aban ind ranath Tagore had fou nded Indian Society of Oriental Art in Kolkata to revive the ancient art traditions of India. He was the principal of government school of art and a great artist of modern India.

QUESTION: 30

Which of the following is first generation computer

Solution:

IBM - 1401, CDC - 1604 is second generation computer. ICL-2900 is a fourth generation computer. EDSAC is important in the development of computer since it was the first computer to use John von. Neumann’s Stored Program Concept. It used 3000 vacuum tubes and computers with vacuum tubes are of first generation computers.

QUESTION: 31

The ambassador of Emperor James-I, who reached in the court of Jahangir in 1615 was-

Solution:

As an ambassador of Emperor James-I, Sir Thomas Roe reached in the court of Mughal Emperor Jahangir at Agra in 1615. Jehangir presented him the Mansab of 400.

QUESTION: 32

Which of the following commission was formed in 1983 to recommend the relationship and balance of power between Central and State Government

Solution:

Sarkaria Commission was set up in June 1983 by the Central Government of India. The Sarkaria Commission’s charter was to examine the relationship and balance of power between state and central governments in the country and suggest changes within the framework of Constitution of India. The Commission was so named as it was headed by Justice Rajinder Singh Sarkaria, a retired judge of the Supreme Court of India. The other two members of the committee were Shri B.
Sivaraman and Dr. S.R. Sen. The Commission after conducting several studies, eliciting information, holding discussions and after detailed deliberations submitted its 1600 page final report in January 1988. The Commission recommended, by and large, status quo in the Centre-State relations, especially in the areas, relating to legislative matters, role of Governors and use of Article 356.

QUESTION: 33

Which of the following is the busiest navigable river of the river.

Solution:

The Rhine, which flows in Switzerland, Liechtenstein, Austria, Germany, France and Netherlands, is the most important and busiest waterway in Europe. Other busy waterways include Seine and Loire rivers of France, Danube river of eastern Europe and Volga river of Russia.

QUESTION: 34

A pond of water appears less deep due to-

Solution:
QUESTION: 35

Which colour is the complementary colour of yellow

Solution:

Yellow (Primary) → Violet/ Purple (Complementry)
Blue (Primary) → Orange (Complementry)
Red (Primary) → Green (Complementry)

QUESTION: 36

First Prime Minister of India born after Independence

Solution:
QUESTION: 37

Which of the following acid is used in battery

Solution:

Lead and le ad di oxide, the active materials on the battery’s plates, react with sulphuric acid in the electrolyte to form lead sulhate. The lead sulfate first forms in a finely divided, amorphous state, and easily reverts to lead, lead dioxide and sulphuric acid when the battery recharges.

QUESTION: 38

Sexually transmitted disease caused by treponema pallidum is

Solution:

Syphilis is (STD) Sexually transmitted diseases caused by treponema pallidum bacteria.

QUESTION: 39

What is India’s rank in the 2016 sustainable Development Goal Index

Solution:

India has been ranked 110th out of 149 nations in the 2016 Sustainable Development Goal Index. The new index is launched by the Sustainable Development Solutions Network (SDSN) and the Bertelsmann to provide a report card for tracking Sustainable Development Goals (SDG) progress and ensuring accountability. The index is topped by Sweden, followed by Denmark and Norway. The index helps countries to identify priorities for early actions and shows that every country faces major challenges in achieving the SDGs.

QUESTION: 40

On which date, the World Milk Day is observed

Solution:

World Milk Day, established by the Food and Agriculture Organization (FAO) of the United Nations is observed annually on 1st June to recognise the importance of milk as a global food. It has been observed on June 1st each year since 2001. In India, the National Milk Day is observed on November 26th.

QUESTION: 41

Who among the following edited and published the newspaper Indian Mirror in 1861

Solution:

In 1861, from Calcut ta the newspaper ‘Indian mirror’ was edited and published by Manmohan Ghosh and Debendranath Tagore.

QUESTION: 42

What has been a major feature of successful businesses in the past decade

Solution:
QUESTION: 43

Under which article of the Indian Constitution the Parliament can create a new all India service, if a resolution is passed by the Rajya Sabha

Solution:

According to the provisions of article 312, the Parliament can create a new all India service, if resolution to that effect in national interest is passed by the council of states.

QUESTION: 44

The “Strait of Dover” separates which of the following countries

Solution:

The Strait of Dover is the strait at the narrowest part of the English Channel and marks a boundary between the Channel and North Sea, separating Great Britain from continental Europe (United Kingdom and France).

QUESTION: 45

Which country has recently declared a 3-month state of emergency in the aftermath of coup attempt

Solution:

The Turkish President Recep Tayyip Erdogan has recently declared a 3-month state of emergency in the aftermath of coup attempt. As per Article 121 of the Turkish constitution, the state of emergency allows the president and cabinet to bypass parliament when drafting new laws and to restrict or suspend rights and freedoms.

QUESTION: 46

If n = 4 then what is total number of orbitals and electron

Solution:

No. of orbital ⇒ n2 ⇒ (4)2 = 16
No. of electron ⇒ 2n2 ⇒ 2(4)2 = 32

QUESTION: 47

What is the Central dogma

Solution:

Central dogma of molecular biology describes the flow of genetic information in cells from DNA to messenger RNA (mRNA) to protein.

QUESTION: 48

Cell placed in hypotonic solution is:

Solution:

Turgid : Hypotonic solution has lower solute concentration than cell cytoplasm, so by osmosis water will enter inside the cell.

QUESTION: 49

Michelle Kakade, who has become the first person to compete the “Indian golden Quadri lateral on foot” belongs to which city of India

Solution:

Michelle Kakade from Pune has become the first person to complete the Indian Golden Quadrilateral on foot. She took 193 days, 1 hour & 9 minutes to cover 5968.4 kms of the Golden Quadrilateral that connects the 4-major metros of India. With this, she book her name in the Guinness Book of World Records for “Fastest time to travel the Indian Golden Quadrilateral on foot (female)” across 57 major cities in India and on the India’ most valuable and largest highway project.

QUESTION: 50

Which of the following has facilitated globalisation of International trade the most

Solution:
QUESTION: 51

Find the distance between circumcenter and incenter of a triangle if the sides of triangle are 3, 4 and 5

Solution:

QUESTION: 52

Find the difference between circumradius and inradius of a triangle if the sides of triangle are 3, 4 and 5

Solution:

Required difference=RC–Ri=2.5=1

QUESTION: 53

When a number S is divided by 3, 4 and 7 successively, remainders obtained are 2, 1 and 4 respectively. What will be the remainder when the same number is divided by 84?

Solution:

Number will be like 3(4(7x + 4) +1)+2= 84x + 53. When this number is divided by 84, remainder obtained is 53.

QUESTION: 54

A man spends 60% of his income. His income increases by 40%, and due to this, he increases his expenditure also by 40%. Find the percentage increrase in his savings?

Solution:

Let Income = Rs. 100
Expenditure = Rs. 60
Savings = Rs. 40
Net Income = Rs. 140
New Expenditure = Rs. 84
New Savings = Rs. 56

QUESTION: 55

A sum is invested for 3yr compounded at 5%, 10%, and 20% per annum, respectively. In 3 yr, if the sum amounts to Rs. 1386, then find the sum.

Solution:

Amount = 1386

Solving it, we get P = Rs. 1000

QUESTION: 56

CP of 12 apples is equal to the SP of 9 apples and the discount on 10 apples is equal to the profit on 5 apples. Find the discount percent?

Solution:

CP of 12 = SP of 9

Now Profit = 1 unit
M.P. of 10 apples = SP of 10 apples + Profit on 5 apples
= 10×4 + 5×1
= 45 units
S.P. of 10 apples = 10×4 = 40

QUESTION: 57

In two alloys, the ratios of copper to zinc is 5 : 2 and 3 : 4. How many kilograms of the first alloy and the second alloy, respectively, should be melted together to obtain 28 kg of a new alloy with equal coper and zinc?

Solution:

Let x and y kg of first alloy and second alloy taken.

Hence, option (d) is the answer.

QUESTION: 58

The sum of four numbers is 233. The ratio of the first number to the second number is 2:3. The ratio of the second number to the thrid number is 5 : 6. The ratio of the third number to the fourth number is 8 : 9. What is the average of the second number and the third number ?

Solution:

Let the 1st number be 2x and 2nd number = 3x

2nd number = 3 x = 3 × 20 = 60

QUESTION: 59

If p + q + r = 1, p2 + q2  + r2 = 9 and p3 + q3 + r3 = 1, then what is the value of

Solution:

Putting p = 2, Q = –2, r = 1; we can get
the value of

QUESTION: 60

Find the maximum value of 12 – 7x–x2

Solution:

12–7x–x2  or –x2 –7 x +12
Here a < 0

QUESTION: 61

If 29 tan θ = 31, find the value of

Solution:

(sin θ + cos θ)2 = sin2 θ + cos2 θ + 2 sin θ cos θ
=1+2 sin θ cos θ
and (sin θ  cos θ )2 = 1  2 sin θ cos θ
Now,

Put the value of tan θ

= (30)2 = 900

QUESTION: 62

Solution:

Let θ = 60°

QUESTION: 63

The angle of elevation of the top of an incomplete vertical pillar at a horizontal distance of 100 m from its base is 45o. If the angle of elevation of the top of complete pillar at the same point is to be 60o, then the height of the incomplete pillar is to be increased by

Solution:

QUESTION: 64

In the given figure, if AD = BD = AC, then the value of ∠C will be :

Solution:

∠1 = ∠ 2 = x (Let)
∠ 3 = ∠1 + ∠2 = 2x (external angle)
∠4 = ∠3 = ∠2x
In Δ ABC,
71° as external angle
∠1 + ∠4 = 71°

QUESTION: 65

If the radii of two circles be 6 cm and 3 cm and the length the transverse common tangent be 8 cm, then the distance between the two centres is :

Solution:

According to question Let length of transverse common tangent = AB = 8 cm Distnace between them = d

QUESTION: 66

AD is the chord of a circle with centre O and DOC is a line segment originating from a point D on the circle and intersecting AB produced at C such that BC = OD. If ∠ BCD = 20o then ∠ AOD = ?

Solution:

According to question

In ΔOBC
∠OCB = ∠COB = 20°
In ΔAOB
∠OBA = 20°+20°
∠OBA = 40°
∠OBA = ∠OAB = 40°
In ΔAOB
∠A + ∠O + ∠B = 180°
40° + ÐO + 40° = 180°
∠O = 100°
DOC is a line
∠COB + ∠AOB + ∠DOA = 180°
20° + 100° + ∠DOA = 180°
∠DOA = 60°

QUESTION: 67

The base of right prism is a triangle whose perimeter is 28 cm and the inradius of the triangle is 4 cm. If the volume of the prism is 366 cc, then its height is:

Solution:

ar (ΔABC) = Inradius × semiperimeter

Volume of the prism = 336 cm3 (area of base) × height = 366 cm3 56× height = 366 cm

QUESTION: 68

The equations ax + b = 0 and cx + d = 0 are consistent, if :

Solution:

The equations are consistent if
a/c = b/d

QUESTION: 69

Two vessels's A and B contain milk and water mixed in the ratio 7 : 6 and 7 : 2 respectively the ratio in which these two mixutres be mixed to get a new mixture containg  milk is

Solution:

QUESTION: 70

A, B and C can completes the work in 20 days, 30 days and 60 days. A alone starts work but every third day A is assisted by B and C together. Then find in how many days total work will be finished.

Solution:

QUESTION: 71

A and B together can finish a work in 15 days. A and C takes 2 days more to complete the same work than that of B and C. A, B and C together complete the work in 8 days. In how many days will A finish it separately?

Solution:

From here work done by C in one day = 15-8 =7 units
If the total work is 120 then we have to factorise 120 is such a way that when we multiply we get 120 and when we find the difference it gives 2

Workdone by A in one day =1 0-7 = 3 unit

QUESTION: 72

Directions (72-75) : The pie chart given below represents the modes of transport for 1400 officers of the Staff Selection Commission, Kolkata. Study the chart and answer the following questions.

Q. The ratio of two-wheelers and cars being used as modes of transport is

Solution:

QUESTION: 73

The pie chart given below represents the modes of transport for 1400 officers of the Staff Selection Commission, Kolkata.

Q. Write down the difference : (officers availing train-officers availaing car)

Solution:

Requi red di fference (36–21)% of 1400 = 210

QUESTION: 74

The pie chart given below represents the modes of transport for 1400 officers of the Staff Selection Commission, Kolkata.

Q. The number of officers who go to office by Metro Rail is

Solution:

No. of the officers who uses metro Rail = 8% of 1400  = 112

QUESTION: 75

The pie chart given below represents the modes of transport for 1400 officers of the Staff Selection Commission, Kolkata.

Q. The number of officers who go to office by car is

Solution:

No. of the officers who uses car = 21% of 1400
= 294

QUESTION: 76

Directions (Q. 76-78) : In these questions, out of the four alternatives, choose the one which can be substituted for the given words/sentence.

Q. Shocking because involving violence

Solution:
QUESTION: 77

Choose the one which can be substituted for the given words/sentence.

Q. Ordinary clothes worn by people who usually wear uniforms

Solution:
QUESTION: 78

Choose the one which can be substituted for the given words/sentence.

Q. To speak quietly and in a way that is not clear

Solution:
QUESTION: 79

Directions (Q. 79-81) : In the following questions, four alternatives are given for the idiom phrase underlined. Choose the alternative which best expresses the meaning of the idiom/phrase.

To lose ground.

Solution:
QUESTION: 80

Choose the alternative which best expresses the meaning of the idiom/phrase.

To fall back on

Solution:
QUESTION: 81

Choose the alternative which best expresses the meaning of the idiom/phrase.

To die in harness.

Solution:
QUESTION: 82

Directions (82): Pick out the nearest correct meaning or synonym of the words given below:

CESSATION

Solution:
QUESTION: 83

Directions (83-87): You have a passage with five questions following. Read the passage carefully and choose the best answer to each question out of the four alternatives.

PASSAGE-I

A computer virus is a type of malware that, when executed, replicates by inserting copies of itself into other computer programs, data files, or the boot sector of the hard drive. However, not all viruses carry a destructive payload or attempt to hide themselves - the defining characteristic of viruses is that they are self- replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/ stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.

Q. The vast majority of viruses evade antivirus softwares by

Solution:
QUESTION: 84

PASSAGE-I

A computer virus is a type of malware that, when executed, replicates by inserting copies of itself into other computer programs, data files, or the boot sector of the hard drive. However, not all viruses carry a destructive payload or attempt to hide themselves - the defining characteristic of viruses is that they are self- replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/ stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.

Q. What is one of the motives of creating viruses ?

Solution:
QUESTION: 85

PASSAGE-I

A computer virus is a type of malware that, when executed, replicates by inserting copies of itself into other computer programs, data files, or the boot sector of the hard drive. However, not all viruses carry a destructive payload or attempt to hide themselves - the defining characteristic of viruses is that they are self- replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/ stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.

Q. What is the synonym of 'vulnerability' in the passage?

Solution:
QUESTION: 86

PASSAGE-I

A computer virus is a type of malware that, when executed, replicates by inserting copies of itself into other computer programs, data files, or the boot sector of the hard drive. However, not all viruses carry a destructive payload or attempt to hide themselves - the defining characteristic of viruses is that they are self- replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/ stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.

Q. What is the defining characteristic of a computer virus?

Solution:
QUESTION: 87

PASSAGE-I

A computer virus is a type of malware that, when executed, replicates by inserting copies of itself into other computer programs, data files, or the boot sector of the hard drive. However, not all viruses carry a destructive payload or attempt to hide themselves - the defining characteristic of viruses is that they are self- replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/ stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.

Solution:
QUESTION: 88

Directions (88): In the following one question, four words are given in each question, out of which only one word is correctly or wrongly spelt.

Solution:
QUESTION: 89

Directions (89-91): In the following three questions, sentences are given with blanks to be filled in with an appropriate word(s). Four alternatives are suggested for each question.

Q. My father_____ home last week.

Solution:
QUESTION: 90

Sentences are given with blanks to be filled in with an appropriate word(s).

Q. An optimist thinks that all _____ well with the world.

Solution:
QUESTION: 91

Sentences are given with blanks to be filled in with an appropriate word(s).

Q. I always fall_____old friends in times of need.

Solution:
QUESTION: 92

Directions (92): Choose the most suitable antonym of the given word.

IMMACULATE

Solution:
QUESTION: 93

Directions (Q. 93-197) : In questions a sentence is given part of which may need improvement. Alternatives are given in (A), (B) and (C) below which may be a better option. In case no improvement is needed, your answer is (D) :

Q. I don't think Harsh will beat Mohit at chess. Mohit is one too much for him.

Solution:
QUESTION: 94

In questions a sentence is given part of which may need improvement.

Q. Since your departure, nothing has been transpired here worth your notice.

Solution:
QUESTION: 95

In questions a sentence is given part of which may need improvement.

Q. Who can prevent you from getting married now that you are within age ?

Solution:
QUESTION: 96

In questions a sentence is given part of which may need improvement.

Q. The disparity of the GDP between the rich and the poor has broadened in  the last some decades

Solution:
QUESTION: 97

In questions a sentence is given part of which may need improvement.

Q. How, is beyond my understanding, the boy could fall into the ditch.

Solution:
QUESTION: 98

Directions (Q. 98-100) : In the following questions, read each sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence. The letter of that part is the answer. If there is no error, then mark no error (Ignore the errors of punctuation, if any).

Q. He left for Mumbai on Sunday arriving there on Monday.

Solution:

Use "arrived " in place of "arriving"

QUESTION: 99

In the following questions, read each sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence.

Q. The increasing mechanisation of life have led us farther away from daily contact with nature and the crafts of the farm.

Solution:

Use "has " in place of "have" since the subject is singular

QUESTION: 100

In the following questions, read each sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence.

Q. We have discussing all the known mechanisms of physical growth.

Solution:

Since the sentence is in continous so use "we are discussing about"