SSC CGL Undated PYQs

Question 1

The marked price of an article is 40% more than its cost price. If 15% discount is given on the marked price, then what will be the proﬁt percentage?

Accepted Answer

Let CP = 100. Then Marked Price (MP) = 140. A 15% discount on 140 is 21. Selling Price = 140 - 21 = 119. Profit = 119 - 100 = 19%.

Question 2

Population density of country E is greater than population density of country D by:

Accepted Answer

Based on the data, country E's density is twice that of D. The difference is equal to D's density, making the percentage increase (Difference / D) × 100 = 100%.

Question 3

Due to increase of 33.33% in the price of apples, a customer can purchase 4 apples less for Rs 16. What is the original price (in paise) of an apple?

Accepted Answer

Price increases by 1/3, so quantity drops by 1/4. 1/4 of original quantity = 4 apples, meaning original quantity was 16. Thus, original price = 16 Rs / 16 = 1 Rs = 100 paise.

Question 4

The average age of 120 members of a society is 60.7 years. By addition of 30 new members, the average age becomes 56.3 years. What is the average age (in years) of newly joined members?

Accepted Answer

Total age of 120 members = 120 × 60.7 = 7284. Total age of 150 members = 150 × 56.3 = 8445. Age of 30 new members = 8445 - 7284 = 1161. Average = 1161 / 30 = 38.7.

Question 5

Which country was designated as the major defence partner of USA in December, 2016?

Accepted Answer

In December 2016, the US officially designated India as a 'Major Defence Partner'. This unique status allows India to receive advanced defense technology on par with closest US allies.

Question 6

Anions are formed by _____.

Accepted Answer

Anions are negatively charged ions. They are formed when a neutral atom gains one or more electrons, resulting in more electrons than protons.

Question 7

What least number must be subtracted from 518, so that the sum is completely divisible by 13?

Accepted Answer

Divide 518 by 13. The quotient is 39 and the remainder is 11. To make the number perfectly divisible by 13, you must subtract this remainder (11) from 518.

Question 8

_________ is an example of intrusive igneous rock.

Accepted Answer

Granite is an intrusive igneous rock formed by the slow cooling of magma beneath the Earth's surface, resulting in large crystals. The others are sedimentary rocks.

Question 9

In Microsoft Excel, the _______() function returns the smallest value among the values passed as arguments.

Accepted Answer

In MS Excel, the MIN() function is specifically designed to evaluate a set of numbers or a range and return the smallest value among them.

Question 10

Which country has launched the longest bullet train line covering a distance of 2252 kilometers in January, 2017?

Accepted Answer

In January 2017, China launched the world's longest bullet train line, the Shanghai-Kunming line, covering 2,252 kilometers. It significantly reduced travel time between the two major cities.

Question 11

______________ scheme launched by the Central Government aims to spur social, economic and infrastructure development in rural areas by developing a cluster of 300 Smart Villages.

Accepted Answer

The Shyama Prasad Mukherji Rurban Mission (SPMRM) was launched in 2016 to develop 300 rural clusters with urban-like facilities, bridging the rural-urban divide and stimulating local economic development.

Question 12

Which movie won the award for the best movie at the Oscar Awards 2017?

Accepted Answer

At the 89th Academy Awards in 2017, 'Moonlight' won the Best Picture award. It was a historic win, famously announced after 'La La Land' was mistakenly declared the winner initially.

Question 13

Which country has banned 'Facebook' ?

Accepted Answer

China banned Facebook in 2009 following the Ürümqi riots to control information flow. They use domestic alternatives like WeChat and Weibo instead.

Question 14

The marginal product curve is inverse ____ shaped.

Accepted Answer

The marginal product curve initially rises, reaches a maximum, and then falls due to the law of diminishing returns, forming an inverse 'U' shape.

Question 15

If sec (3x – 20°) = cosec (3y + 20°), then what is the value of tan (x + y)?

Accepted Answer

Since sec A = cosec B implies A + B = 90°, we get 3x - 20° + 3y + 20° = 90°. This gives 3(x + y) = 90°, so x + y = 30°. Thus, tan(30°) = 1/√3.

Question 16

Anil is twice as good as workman as Bimal and together they ﬁnish a piece of work in 9 days. In how many days will Anil alone ﬁnish the work?

Accepted Answer

Anil's efficiency is 2, Bimal's is 1. Total efficiency = 3. Total work = 3 × 9 = 27 units. Time taken by Anil alone = 27 / 2 = 13.5 days.

Question 17

A bus travels 2/5 of a total journey at its usual speed. The remaining distance was covered by bus at 6/7 of its usual speed. Due to slow speed it reaches its destination 50 minutes late. If the total distance is 200 kms, then what is the usual speed (in km/hr) of bus?

Accepted Answer

Remaining distance is 120 km. The time difference is 120/(6v/7) - 120/v = 20/v hours. Equating this to 50/60 hours gives 20/v = 5/6, so v = 24 km/hr.

Question 18

Which one among the following is a main system board of a computer?

Accepted Answer

The motherboard is the main printed circuit board in a computer. It connects and allows communication between all crucial electronic components, such as the CPU and memory.

Question 19

The average weight of 100 students is 32 kg. The average weight of first 49 students is 30 kg and of last 50 students is 34 kg. What is the weight (in kg) of the 50th student?

Accepted Answer

Total weight = 100 × 32 = 3200 kg. Weight of 99 students = (49 × 30) + (50 × 34) = 1470 + 1700 = 3170 kg. 50th student = 3200 - 3170 = 30 kg.

Question 20

Improve the bracketed part of the sentence. I (didn't see) him since we met two years ago.

Accepted Answer

The phrase 'since we met two years ago' indicates an action that started in the past and continues to the present. This requires the present perfect tense, 'have not seen'.