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SSC CGL Tier I Mock Test - 11 - SSC CGL MCQ


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30 Questions MCQ Test - SSC CGL Tier I Mock Test - 11

SSC CGL Tier I Mock Test - 11 for SSC CGL 2025 is part of SSC CGL preparation. The SSC CGL Tier I Mock Test - 11 questions and answers have been prepared according to the SSC CGL exam syllabus.The SSC CGL Tier I Mock Test - 11 MCQs are made for SSC CGL 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for SSC CGL Tier I Mock Test - 11 below.
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SSC CGL Tier I Mock Test - 11 - Question 1

Arrange the following words according to dictionary -

1. Exploit

2. Explosive

3. Exponent

4. Exposition

5. Explore

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 1

1. Exploit as the letter I comes before R

5. Explore as the letter R comes before S

2. Explosive as the letter L comes before O

3. Exponent as the letter N comes before S

4. Exposition

Hence the correct answer will be '1,5,2,3,4'

SSC CGL Tier I Mock Test - 11 - Question 2

How many triangles are there in the given figure?

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 2

The number of triangles in the given figure is:


So, there are a total of 15 triangles in the figure.

Hence, ‘15’ is the correct answer.

SSC CGL Tier I Mock Test - 11 - Question 3

Select the option that is related to the fifth term in the same way as the second term is related to the first term and fourth term is related to third term.

AR37 ∶ DW44 ∶∶ PQ43 ∶ SV5O ∶∶ GF31 ∶ ?

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 3

The logic followed here is:

For, AR37 ∶ DW44

For, PQ43 ∶ SV5O

Similarly, for GF31 ∶ ?

Hence, the correct answer is "Option 3".

SSC CGL Tier I Mock Test - 11 - Question 4

Select the option in which the numbers shares the same relationship in set as that shared by the numbers in the given set. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E. g. 13 – Operations on 13 such as adding / subtracting / multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)

(144, 8, 4)

(256, 12, 4)

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 4

The logic followed here is:

(Second number + Third Number)2 = First Number

(144, 8, 4) → (8 + 4)2 = 122 = 144

(256, 12, 4) → (12 + 4)2 = 162 = 256

Similarly,

(400, 16, 4) → (16 + 4)2 = 202 = 400

Hence, '(400, 16, 4)' is the correct answer.

SSC CGL Tier I Mock Test - 11 - Question 5

In a certain code language, PIKACOO is written as KRPZXLL. How will JERRY be written in that language?

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 5

The logic followed here is : 

  • PIKACOO is written as KRPZXLL 

Similarly,

  • JERRY be written as :

Thus, JERRY be written as QVIIB

Hence, the correct answer is "QVIIB".

SSC CGL Tier I Mock Test - 11 - Question 6

Select the correct combination of mathematical symbols that can sequentially replace the * symbols and balance the following equation.

117 * 13 * 65 * 15 * 984

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 6

The logic followed here is:

In order to find the balance equation, check all options one by one.

Option (1) : -, ÷, +, =

117 – 13 ÷ 65 + 15 = 984

132 – 0.2 = 984

131.8  984

Option (2) : ×, +, ÷, =

117 × 13 + 65 ÷ 15 = 984

1521 + 4.34 = 984

1525.34 ≠  984

Option (3) : ÷, +, ×, =

117 ÷ 13 + 65 × 15 = 984

9 + 975 = 984

984 = 984

Option (4) : +, ÷, ×, =

117 + 13 ÷ 65 × 15 = 984

117 + 0.2 × 15 = 984

117 + 3 = 984

120  984

Hence, "÷, +, ×, =" is the correct answer.

SSC CGL Tier I Mock Test - 11 - Question 7

Which of the following numbers will replace the question mark (?) in the given series?

-34, -31, -25, -16, -4, 11, 29, ? 

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 7

The logic followed here is:

So, '50' will complete the series.

Hence, the correct answer is "Option 2".

SSC CGL Tier I Mock Test - 11 - Question 8
In the following question, select the odd word pair from the given alternatives.
Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 8

Moon is a satellite, Earth is a planet and Mercury is also a planet.

Here, first one is part of second one.

Venus is Hot but Venus is not a part of Hot.

Hence, "Venus - Hot" is the odd one out.

SSC CGL Tier I Mock Test - 11 - Question 9

Choose from the four answer figures the figure that will be formed when question figure is folded into a box.

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 9

The opposite sides of cubes are

Now look at the options

 → This figure cannot be the answer because from the above figure it is clearly seen that the face S is opposite to face T but in this figure face S is adjacent to the face T.

 → This figure cannot be the answer because from the above figure it is clearly seen that the face P is opposite to face R but in this figure face P is adjacent to the face R.

 → This figure cannot be the answer because from the above figure it is clearly seen that the face U is opposite to face Q but in this figure face U is adjacent to the face Q.

 → This figure satisfies the above conditions, Hence this figure will be the answer figure.

Hence, the correct answer is Option (4).

SSC CGL Tier I Mock Test - 11 - Question 10
Which of the following is Non-Federal feature of the Indian Constitution ?
Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 10

The correct answer is Single Constitution.

Key Points

  • Federal Government: A government in which powers are divided between the central government and state government by the constitution itself and both operate in their respective jurisdiction independently.
  • Unitary Government: A government in which all the powers are vested in the central government and if state governments exist, they derive their authority from the central government.

Important PointsComparing Features of Federal and Unitary Governments

SSC CGL Tier I Mock Test - 11 - Question 11
In which state of India is the ancient site Kalibangan, of Indus Valley civilisation, situated?
Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 11

The correct answer is Rajasthan.Key Points

  • The ancient site Kalibangan, of Indus Valley civilization, is situated in Rajasthan.
  • Plowed field surface, 7 fire altars, decorated bricks, and bones of Camel were found in Kalibangan. 

Additional Information

  • Lothal was a Dockyard during the Indus Valley Civilization.
  • Great granary, great bath, steatite image of a bearded man were found in Mohenjo Daro.
  • Chanhudaro was the city without Citadel.
  • Rakhigarhi is the largest Indian site of the Indus Valley Civilization.
  • The Indus Valley Civilization was spread from present-day North-East Afghanistan to Pakistan and North-West India. The civilization flourished in the river basins of the Ghaggar-Hakra river and the Indus. Indus valley civilization is one of the four oldest civilizations in the world. It is also known as Harappan Civilization and is well-known for its organized planning based on the grid system.

Important facts to be remembered.

  • John Marshall was the first researcher to use the term, ‘Indus Valley Civilization’.
  • Indus Valley Civilization spread from the year 2500 – 1750 BC according to radio-carbon dating.
  • The most distinctive feature of the Harappan Civilization was its urbanization.
  • Moreover, sheep and goats, dogs, humped cattle buffalo, and elephants were domesticated in the Indus Valley Civilization.
  • The capital cities are Mohenjodaro and Harappa.
  • The port cities are Sutkagendor, Balakot, Lothal, Allahdino, and Kuntasi.
  • The Indus valley people were well-acquainted with the use of both cotton and wool.

Important Points Name of the major cities are given below:

  • Mohenjodaro (Sind)-It is located on the right bank of the Indus.
  • Kalibangan (Rajasthan)-It was on the banks of the river Ghaggar river.
  • Chanhudaro - It lies on the left bank of the Indus in the south of Mohenjodaro.
  • Lothal(Gujarat) - It is located at the head of the Gulf of Cambay.
  • Surkotada (Gujarat) - It is at the head of the Rann of Kutch.
  • Banawali (Haryana) - It was situated on the banks of the now-extinct Sarasvati.
  • Dholavira (Gujarat) - It excavated is in the Kutch district.
  • Social features-
    • Indus valley civilization is the first urbanization in India.
    • It has a well-planned drainage system, grid pattern, and town planning.
    • They have possessed equality in society.
  • Religious Facts-
    • Matridevi or Shakti is the Mother goddess.
    • Yoni worship and Nature worship existed.
    • They worshipped trees like Peepal.
    • People also worshipped Fire worship called Havan Kund.
    • Pashupati Mahadeva is known as the lord of Animals.
    • The people of Indus Valley Civilization worshipped Animal worship like Unicorn and ox.
  • Economic facts-
    • Indus valley civilization is based on agriculture.
    • Trade and commerce flourished in this period.
    • A dockyard has been found at Lothal.
    • There were export and import.
    • Production of cotton was there.
    • There was also the unit of measurement.
    • Weights and measures of truth existed in Harappan culture was seen at Lothal.
    • The weights were made of limestone, steatite, etc. and were usually cubical in shape.
SSC CGL Tier I Mock Test - 11 - Question 12
Name the first foreign bank to give Electronic Bank Guarantee platform in India.
Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 12
The correct answer is HSBC Bank.In News HSBC India, has introduced Electronic Bank Guarantee (E-BG) services to facilitate digitization of trade finance.Key Points
  • HSBC is the first foreign bank in the country to offer this facility which is made possible through a collaboration with National E-Governance Services Ltd (NeSL), a digital solutions provider.
  • The E-BG platform simplifies and expedites the guarantee issuance process by introducing electronic stamping (E-stamping) and electronic signing (E-signing), effectively eliminating the need for paper documentation.
  • It also digitizes every step, from application to verification and delivery.
  • This digital substitute offers near-instantaneous processing, substantially reducing the transaction cycle time. What previously took 2-3 days can now be accomplished in a matter of minute.
SSC CGL Tier I Mock Test - 11 - Question 13
Who among the following is the custodian of the Constitution of India?
Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 13

 The correct answer is The Supreme Court of India.

Key Points

  • The Supreme Court is the Custodian of the Constitution of India.  
  • It is the guardian of fundamental rights (Article 32).
  • It has the power of Judicial review. 
  • Indian Judiciary is an integrated, powerful, and independent judiciary. 
  • The Legislature and the Executive participate directly in the law-making process but it's the judiciary that safeguards Public Interest by checking into overreach, misuse, and error of law. 
  • The Supreme Court is also an interpreter and Guardian of the constitution.  
  • The authority to amend the constitution is with Parliament but the Supreme Court has the authority to examine the validity of these amendments. (Amend constitution except for Basic structure: Keshavananda Bharati case)
  • The supreme court ensures that all the government branches perform their duties in accordance with the constitution through various checks and balances.

Important Points

  • The President of India is the head of the State.
  • Article 53: The executive power vested in the President and shall be either directly or through an officer subordinate to him in accordance with this constitution.
  • Article 56 (2): The President may, for violation of the Constitution, be removed from office by impeachment in the manner provided in article 61.
SSC CGL Tier I Mock Test - 11 - Question 14

"Stopper"  terminology is associated with which of the following sports?

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 14

The correct answer is option 1) i.e Football.

Important Points

  • A stopper is positioned between the defenders and the midfielders.
  • They typically stay in a central position on the field, focusing on stopping balls from getting to the defence.
  • Occasionally, the stopper will move far towards the touchlines in order to stop an attack from the other team.
  • Stoppers often help to move the ball from the defenders to the midfielders or forwards.
  • This position is not included in every lineup; only some coaches choose to use stoppers in their on-field formations.

Key Points

About Football:

  • The Football game is a team game and an outdoor sport which is basically played on the field. The field is rectangular in shape. Some of the countries Football game is known as Soccer.
  • This game consists of two teams sixteen(16) players on each team Eleven(11) players from each team played on the field and the rest of the five (5) players are sitting on the substitute bench.
  • The standard dimension of the Football Field is (110 meters by 90 meters) in length and (90 meters by 60 meters) in breadth approximately the international stadium size.
  • The weight of the football is measured on an Ounce. Some of the positions of football are played on the field they are Stopper, Goal Keeper, Winger (right and left), Striker, Midfielder, etc.
  • In 1888The Football League was founded in England (United Kingdom) and became the first of many professional football competitions in the world
  • Globally Football is governed by FIFA (Federation International Football Association). It was established on 21st May 1904 in Paris (France).
  • In India Football is governed by AIFF (All India Football Federation). It was founded on 23rd June 1937.

 Additional Information

  • The current President of FIFA is Mr. Gianni Infantino (August 2020). Its headquarters is located in Zurich(Switzerland).
  • The current President of AIFF is Mr. Kalyan Chaubey (August 2020). Its headquarters is located in New Delhi.
  • The latest ranking by FIFA Brazil topped the spot at 1st rank (April 2022) and India at 106th rank (April 2022).
SSC CGL Tier I Mock Test - 11 - Question 15
Color of which of the following soil is red due to diffusion of iron rather than the pressure of environment?
Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 15

The correct answer is Red Soil.

Key Points

  • Red Soil:-
    • ​Red soil develops reddish colour due to the diffusion of iron in crystalline and metamorphic rocks.
    • It looks yellow in a hydrated form.
    • It is highly porous and fertile when they are fine-grained and deep.
    • This soil is deficient in nitrogen, humus, phosphoric acid, magnesium, and lime but fairly rich in potash, with its pH ranging from neutral to acidic.
    • Cotton, wheat, rice, beans, millets, tobacco, oilseeds, potatoes, and fruits are some of the appropriate crops for red soils.
    • Red soil develops on crystalline igneous rocks in areas of low rainfall in the eastern and southern parts of the Deccan plateau.
    • They are also found in parts of Orissa, Chhattisgarh, southern parts of the middle Ganga plain and along the piedmont zone of the Western Ghats.

Additional Information Laterite Soil

  • Laterite has been derived from the Latin word ‘Later’ which means brick. 
  • The laterite soils develop in areas with high temperatures and heavy rainfall. 
  • These are the result of intense leaching due to tropical rains. With rain, lime and silica are leached away, and soils rich in iron oxide and aluminum compound are left behind. 
  • Humus content of the soil is removed fast by bacteria that thrives well in high temperature. 
  • These soils are poor in organic matter, nitrogen, phosphate and calcium, while iron oxide and potash are in excess. 
  • Hence, laterites are not suitable for cultivation; however, application of manures and fertilizers are required for making the soils fertile for cultivation. 
  • Red laterite soils in Tamil Nadu, Andhra Pradesh and Kerala are more suitable for tree crops like cashewnut.
  • Laterite soils are widely cut as bricks for use in house construction. 
  • These soils have mainly developed in the higher areas of the Peninsular plateau. 
  • The laterite soils are commonly found in Karnataka, Kerala, Tamil Nadu, Madhya Pradesh and the hilly areas of Odisha and Assam.

Black Soil

  • Black soil covers most of the Deccan Plateau which include parts of Maharashtra, Madhya Pradesh, Gujarat, Andhra Pradesh, and some parts of Tamil Nadu.
  • These soils are also known as the ‘Regur Soil’ or the ‘Black Cotton Soil’.
  • The black soils are generally clayey, deep, and impermeable.
  • They swell and become sticky when wet and shrink when dried. Being sticky is characteristic of black soil.
  • So, during the dry season, this soil develops wide cracks. Thus, there occurs a kind of ‘self-ploughing’.
  • The black soils are rich in lime, iron, magnesia, and alumina.
  • They also contain potash but they lack phosphorous, nitrogen, and organic matter.

Alluvial Soil

  • Alluvial soils are widespread in the northern plains and the river valleys. These soils cover almost 40% of the total area of the country. 
  • They are depositional soils, transported and deposited by rivers and streams
  • Zonal Soil- These types of soil have the same mineral properties that of the parent rock and are found in the same area where they are weathered.
  • The alluvial soils vary in nature from sandy, loam to clay.
  • Alluvial soils lack nitrogen, phosphorus and humus. However, they are generally rich in potash and lime. 
  • In the Upper and Middle Ganga plain, two different types of alluvial soils have developed, viz. Khadar and Bhangar.
  • Khadar is the new alluvium and is deposited by floods annually, which enriches the soil by depositing fine silts.
  • Bhangar represents a system of older alluvium, deposited away from the flood plains.
  • The colour of the alluvial soils varies from light grey to ash grey.
  • The soil lacks nitrogen content. 
SSC CGL Tier I Mock Test - 11 - Question 16
Which was the first National Movement in which women's participation was really very notable?
Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 16

The correct answer is Dandi March.

Key Points

Dandi March

  • On 12th March 1930, Gandhiji began his march from the ashram to the ocean. He reached shore and made salt and thereby making himself a criminal insight of law. Many parallel salt marches were undertaken during this time in other parts of the country.
  • It brought Mahatma Gandhi and India to the attention of the world.
  • It was the first National Movement in which women participation was really very notable.
  • Kamladevi Chattopadhyay, a socialist leader persuaded Gandhi not to restrict movement to men alone.
  • Many women including Kamladevi broke salt and liquor laws and courted arrest.
  • Third and most significant was that this movement forced the British to realise that their Raj would not last forever and they need to devolve some power to Indians.
SSC CGL Tier I Mock Test - 11 - Question 17

Consider the following statements regarding frictional unemployment

A. It is a type of unemployment that arises during workers transition from one job to another.

B. Frictional unemployment tends to fall during the recession.

Which of the statements given above is/are correct?

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 17

The Correct answer is Both A and B.

Important Points

  • Frictional unemployment is a type of unemployment that arises when workers are searching for new jobs or are transitioning from one job to another. It is part of natural unemployment and hence is present even when the economy is considered at full employment.
    • Hence statement A is correct.
  • The major cause of frictional unemployment include -:
  • A mismatch between the workers and available jobs
  • If there is a mismatch between job-seekers and available jobs in the market, that is considered frictional unemployment. The issue can especially affect the new entrants or re-entrants to the job market. This is generally due to the natural career progression for an employee, and their natural transition to a new job, industry, or role.
  • Workers’ dissatisfaction with work conditions
  • Workers’ anxiety towards salaries, benefits, work location, job responsibilities, etc. may force them to quit their current job, and look for something that better meets their updated expectations.
  • In a recession, frictional unemployment tends to fall as workers have less confidence to wait for a better job. They are more likely to stay in their current job or take the first job that comes along.
    • Hence statement B is correct
SSC CGL Tier I Mock Test - 11 - Question 18
Which of the following is the world’s largest lake?
Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 18

The correct answer is the Caspian Sea.

Key Points

  • The Caspian Sea is the largest inland body of water on the earth's surface.
  • A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. 
  • Lakes lie on land and are not part of the ocean, although, like the much larger oceans, they do form part of the Earth's water cycle.
  • The Caspian Sea lies at the junction of Europe and Asia.
  • It has the greatest surface area of any lake at 143,200 square miles (370,886 square kilometres).
  • It accounts for 40 to 44% of the total lacustrine waters of the world.
  • The Caspian Sea is best known for its caviar and oil industries.
  • The Caspian Sea is bounded by: 
    • Iran to the south and adjacent corners.
    • Russia from mid-north to mid-west.
    • Kazakhstan from mid-north to mid-east.
    • Azerbaijan to the southwest.
    • The Caspian Sea is bordered by five countries: Russia, Kazakhstan, Turkmenistan, Iran, and Azerbaijan.

Additional Information

  • Lake Superior: Lake Superior is the largest of the Great Lakes of North America, and among freshwater lakes, it is the world's largest in surface area and third-largest by volume.
  • Lake Van: Lake Van is the largest lake in Turkey. It is a saline soda lake and one of the few endorheic lakes in the world (a lake that has no outlet).
  • Dal Lake: Dal Lake is an urban lake located in Srinagar, the summer capital of Jammu and Kashmir. It is integral to tourism and recreation in the Kashmir valley and is variously known as the "Lake of Flowers", "Jewel in the crown of Kashmir" or "Srinagar's Jewel".

Confusion Points

  • You may think that 'Lake Superior' is the correct answer but it is not.
  • It is the world's largest freshwater lake. It is not the largest lake.
  • Thus, Caspian Sea is the correct answer.
SSC CGL Tier I Mock Test - 11 - Question 19
Writ jurisdiction of the High Court is exercised under which of the following Articles of Indian Constitution?
Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 19

The correct answer is Article 226.Key Points

  • Under Article 226, a writ petition can be filed in a High court for issuing one of the five writs as per the case
  • A High Court is empowered to issue directions, orders, or writs for the enforcement of a Fundamental Right and for any other purpose those include:
    • Habeas corpus
    • Mandamus
    • Prohibition
    • Quo warranto
    • Certiorari.
  • The Supreme Court is considered the protector and guarantor of fundamental rights(Article 32). 

Additional Information

  • Article 32  of the Indian Constitution has been described as the ‘heart and soul’ of the Indian Constitution by Dr B. R. Ambedkar.
    • It gives a citizen the right to approach the Supreme Court to get resorted to any of the fundamental rights in case of their violation.
    • It is also known as the Right to Constitutional Remedies.
  • Article 346- States the Official language for the communication between one state and the other or the state and the union.
  • Article 21 is one of the prime articles comprising Part III of the Constitution of India dealing with fundamental rights.
    • Article 21 is the protection of life and personal liberty.
SSC CGL Tier I Mock Test - 11 - Question 20

Which of the following are metalloids? 

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 20

The correct answer is Boron, silicon, antimony.

 Key Points

  • Metalloids:-
    • These are elements that have properties similar to both metals and non-metals. In some of their properties, they show similarity with metals and in others with non-metals.
    • They are hence placed in between metals and non-metals.
    • Metalloids can also be called semimetals.
    • They are found in groups 13, 14, 15, 16 and 17 of the p-block.
    • Metalloids include Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium and Polonium.
    • Total elements are 118 out of which 91 are metals, 7 are metalloids, and 20 are non-metals.
    • In the modern periodic table, metalloids are in Right of the periodic table

SSC CGL Tier I Mock Test - 11 - Question 21

The area enclosed between the circumferences of two concentric circles is 16π cm2 and their radii are in the ratio 5 ∶ 3. What is the area of the outer circle?

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 21

Given:

The area enclosed between the circumferences of two concentric circles = 16π cm2

The ratio of their radii = 5 : 3

Formula used:

Area of circle = πr2

Calculation:

Let the radius be R = 5x and r = 3x

According to the question

⇒ πR2 - πr2 = 16π

⇒ π(R2 - r2) = 16π

⇒ R2 - r2 = 16

⇒ (5x)2 - (3x)2 = 16

⇒ 25x2 - 9x2 = 16

⇒ 16x2 = 16

⇒ x = 1

Now, outer circle R = 5x = (5 × 1) = 5 cm

The area of outer circle = π(5)2 = 25π cm2

∴ The required area is 25π cm2

SSC CGL Tier I Mock Test - 11 - Question 22
Find the volume of a sphere whose diameter is 42 m.
Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 22

Given:

Diameter = 42m

Formula used:

Volume of sphere =

Calculation:

Volume of sphere = 

substituting 

volume =  = 38808 m3

∴ Option 3 is the correct answer.

SSC CGL Tier I Mock Test - 11 - Question 23
The time taken by a boat to cover a certain distance upstream is equal to 4/7 of the time taken by it to cover three times the same distance downstream. The speed of the stream is 7.5 km/h. How many (total) hours will the boat take to go 42 km upstream and 54 km downstream?
Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 23

Given:

The time taken by a boat to cover a certain distance upstream is equal to 4/7 of time taken by it cover three times the same distance downstream.

The speed of the stream is 7.5 km/h

Concept used:

Downstream Speed  = The speed of the boat in still water + The speed of the stream

Upstream Speed  = The speed of the boat in still water - The speed of the stream

Formula used:

Time = Distance/Speed

Calculation:

Let the distance and speed of the boat in still water be D km and x km/hr respectively.

Downstream speed =  (x + 7.5) km/hr

Upstream speed = (x - 7.5) km/hr

According to the question

D/(x - 7.5) = 3D/ (x + 7.5) × 4/7

⇒ 1/(x - 7.5) = 12/(7x + 52.5)

⇒ 7x + 52.5 = 12x - 90

⇒ 142.5 = 5x 

⇒ x = 28.5

Downstream speed = (28.5 + 7.5) = 36 km/hr

Upstream speed = (28.5 - 7.5) = 21 km/hr

Now, the time taken by the boat to go 54 km downstream &  42 km upstream.

⇒  54/36 + 42/21 

⇒ 1.5 + 2 = 3.5 hours

∴ The boat will take 3.5 hours to go 54 km downstream and 42 km upstream. 

SSC CGL Tier I Mock Test - 11 - Question 24
Pipes A and B can fill a tank in 10 hours and x hours respectively. Pipe C alone can empty the full tank in 15 hours. When all the three pipes are opened simultaneously for 8 hours, 60% of the tank can be filled. In how many hours can pipes B and C together empty two-fifth of the tank?
Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 24

Given:

Pipes A and B can fill a tank in 10 hours and x hours respectively.

Pipe C alone can empty the full tank in 15 hours. When all three pipes are opened simultaneously for 8 hours, 60% of the tank can be filled. 

Concept Used:

Work done = Time × Efficiency

Calculation:

Let the LCM of (10, x, and 15) = 150x

So, the total work is 150x.

Efficiency of A = 150x/10 = 15x

Efficiency of B = 150x/x = 150

Efficiency of C = 150x/15 = - 10x (-ve sign shows that the pipe C is emptying the tank)

Total work done by them in 1 hour when opened simultaneously = (15x) + (150) + (-10x) = 5x + 150

When opened for 8 hours they fill 60% of the tank,

⇒ (5x + 150) × 8 = 60% of 150x

⇒ 40x + 1200 = 90x

⇒ 50x = 1200

⇒ x = 24

Total work = 150 × 24 = 3600

Efficiency of B and C together = (150 - 10x) units

⇒ {150 - 10(24)} units

⇒ (150 - 240) units

⇒ - 90 units (-ve sign shows that the tank will be emptied)

Time taken by B and C together to empty two-fifths of the tank = {3600 × (2/5)}/90

⇒ 1440/90 = 16 hours

Hence, the correct answer is 16 hours.

SSC CGL Tier I Mock Test - 11 - Question 25

In the given figure, if ∠APO = 35°, then which of the following options is correct?

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 25

From the following figure,

∠APO = 35°

As we know,

∠APO = ∠BPO = 35°      (ΔAPO ≅ ΔBPO)

SSC CGL Tier I Mock Test - 11 - Question 26
A retailer prices his products to earn a 40% profit even after offering a 4a% discount. If on a particular day, instead of the usual discount, the retailer ends up giving a (3a + 25)% discount to a customer, what will be his percentage of profit or loss?
Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 26

Given:

Profit % of the retailer = 40%

Discount = 4a%

New discount =  (3a + 25)%

Formula Used: 

Calculation:

 

       .........(1)

Now, when the discount is (3a + 25)%

              .........(2)

Equate the value of equation (1) in eq. (2), we get,

 = 

⇒ 100 × 100 - 400a + 100p - 4ap = 140 × 100 - 3a × 140 - 25 × 140 

⇒ 10000 + 100p - 4ap - 400a = 14000 - 420a - 3500

⇒ 100p - 4ap = 500 - 20a 

⇒ p(100 - 4a) = 5(100 - 4a)

⇒ p = 5

Here, p is a positive value so the profit will occur. 

∴ The correct answer is 5% Profit.

SSC CGL Tier I Mock Test - 11 - Question 27

Directions: Each item in this section consists of a sentence with an underlined word followed by four words/group of words. Select the option that is nearest in meaning to the underlined word and mark your response on the answer sheet accordingly.

Education gives people the knowledge and skills they need to stay healthy, get jobs and foster tolerance.

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 27

The correct answer is: Endurance
Key Points

  • Tolerance means the ability to accept or endure differences, especially those in opinions, beliefs, or behaviours, without reacting negatively. (सहनशीलता)
    • ExampleThe community embraced cultural tolerance, celebrating diversity and understanding.
  • Marked option Endurance means the ability to endure or withstand hardship or adversity. (सहनशक्ति)
    • ExampleMarathon runners showcase incredible endurance, pushing their physical limits over long distances.
  • In the given context, education helps people endure challenges and maintain their well-being.

Therefore, the correct answer is option 4.
Additional Information

  • Entrench means to establish firmly or securely. (मोरचा करना)
  • Distrust means to have doubts or suspicions about someone or something. (संदेह)
  • Lethargy means a lack of energy or enthusiasm. (आलस्य)
SSC CGL Tier I Mock Test - 11 - Question 28

Select the most appropriate word for the given group of words.

A list of names or things in a special order.

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 28

The correct answer is option 2) i.e. Catalogue.

  • Directory is a book or website listing individuals or organizations alphabetically or thematically with details.
  • Catalogue is a complete list of items, typically one in alphabetical or other systematic order.
  • Atlas is a book of maps or charts.
  • Dictionary is a book or electronic resource that lists the words of a language (typically in alphabetical order) and gives their meaning, or gives the equivalent words in a different language, often also providing information about pronunciation, origin, and usage.

So, only option 2 is correct.

SSC CGL Tier I Mock Test - 11 - Question 29

Choose the appropriate word to complete the given sentence

John must have the  ____  to stick to his diet, if he wants to lose weight.  

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 29

The correct answer is "determination". 

Key Points

  • "Determination" means the quality of being firm or steadfast in one's purpose.
  • This matches effectively with the context and would be the best fit as it suggests a necessary characteristic John needs to maintain his diet.

Therefore, the correct answer is "Option 2". 

Additional Information

  • "Obstinacy" means stubbornness which has a slightly negative connotation and wouldn't be the best choice to describe someone trying to succeed in a personal goal such as this.
  • "Decision" refers to making a choice but does not imply the continuing effort or resolve needed to stick to a diet.
  • "Obligation" means a moral or legal duty to do something.
    • Though it can be used in some cases, it is not the best choice here as it indicates a duty or requirement rather than a personal resolve or commitment.
SSC CGL Tier I Mock Test - 11 - Question 30

Select the option that can be used as a one-word substitute for the given group of words.

An imaginary society free from crimes and poverty

Detailed Solution for SSC CGL Tier I Mock Test - 11 - Question 30

The correct answer is "Utopia"

Key Points

  •  Let's understand the given one-words.
    • Sepia - a reddish-brown color often used to describe old photographs or artwork.
    • Myopia - a condition in which a person can see nearby objects clearly but has difficulty seeing things farther away; also used to describe narrow-mindedness or a lack of imagination.
    • Utopia - an imagined place or state of things in which everything is perfect or ideal.
    • Anopia - blindness or a lack of visual perception.
  • Thus, as per the above explanation the most appropriate one-word for the given group of words is "Utopia"

Correct answer: Utopia

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