SSC CGL Undated PYQs

Question 1

70% of the cost price of a article is equal to the 40% of its selling price. What is the proﬁt or loss percentage?

Accepted Answer

Given 70% of CP = 40% of SP. This gives the ratio CP/SP = 40/70 = 4/7. Profit = 7 - 4 = 3. Profit % = (3/4) × 100 = 75%.

Question 2

A solid cone of height 24 cm and radius of its base 8 cm is melted to form a solid cylinder of radius 6 cm and height 6 cm. In the whole process what percent of material is wasted?

Accepted Answer

Cone volume = 1/3 × π × 8² × 24 = 512π. Cylinder volume = π × 6² × 6 = 216π. Wasted volume = 512π - 216π = 296π. Waste % = (296/512) × 100 ≈ 57.8%.

Question 3

If X and Y are the two digits of the number 347XY such that the number is completely divisible by 80, then what is the value of X + Y?

Accepted Answer

For 347XY to be divisible by 80, Y must be 0. Then 347X must be divisible by 8. The last three digits 47X must be divisible by 8, which gives X=2. Thus, X+Y = 2+0 = 2.

Question 4

What is the difference in number of employees of company D and company A?

Accepted Answer

To find the required difference, identify the number of employees for companies D and A from the given data, then subtract the smaller value from the larger one to get 100.

Question 5

Who is known for the invention of 'World Wide Web'? ?

Accepted Answer

Sir Tim Berners-Lee, a British computer scientist, invented the World Wide Web in 1989 while working at CERN to help scientists share data easily.

Question 6

In which year was All India Anna Dravida Munnetra Kazhagam (AIADMK) founded?

Accepted Answer

AIADMK was founded in 1972 by M. G. Ramachandran (MGR) after he broke away from the Dravida Munnetra Kazhagam (DMK).

Question 7

'Lucky Grahak Yojana' and 'Digi Dhan Vyapar Yojana' to give cash awards to the customers and merchants was launched by which government body?

Accepted Answer

NITI Aayog launched these schemes in 2016 to promote digital payments post-demonetization, rewarding consumers and merchants for using cashless transaction methods like UPI and RuPay.

Question 8

Which blood group is universal donor?

Accepted Answer

O-negative (O–) blood has no A, B, or Rh antigens on its red blood cells. This means it won't trigger an immune response in recipients, making it the true universal donor.

Question 9

Which year shows the maximum percentage increase in the total number of students in these 4 subjects over the previous year?

Accepted Answer

Calculate the total students for each year. Then find the percentage increase = ((Current Year Total - Previous Year Total) / Previous Year Total) × 100. Year 2015 yields the highest percentage.

Question 10

Which of the following is not an example of Allotrope?

Accepted Answer

Diamond and graphite are allotropes of carbon, and ozone is an allotrope of oxygen. Steel is an alloy of iron and carbon, not an allotrope.

Question 11

ΔABC is right angled at B. BD is an altitude. AD = 9 cm and DC = 16 cm. What is the value of BD (in cm)?

Accepted Answer

In a right-angled triangle, the altitude to the hypotenuse satisfies BD² = AD × DC. Here, BD² = 9 × 16 = 144, so BD = 12 cm.

Question 12

'Rovers cup' is associated with which of the following sport?

Accepted Answer

The Rovers Cup was an annual football tournament held in India. Started in 1891 by British enthusiasts, it was one of the oldest football tournaments in the country.

Question 13

If medians of a triangle have lengths 18 cm, 24 cm and 30 cm, then what is the area (in cm2) of the triangle?

Accepted Answer

The medians 18, 24, and 30 form a right triangle. Its area is 1/2 × 18 × 24 = 216. The original triangle's area is 4/3 × 216 = 288 cm².

Question 14

Who invented Pentium Chip?

Accepted Answer

Vinod Dham is widely known as the 'Father of the Pentium Chip' for his highly successful role in leading Intel's Pentium microprocessor development in the 1990s.

Question 15

What is the remainder when 2468 is divided by 37?

Accepted Answer

Divide 2468 by 37. The quotient is 66 since 37 × 66 = 2442. Subtracting 2442 from 2468 gives a remainder of 26.

Question 16

Improve the bracketed part of the sentence. I wish I (was) a superman.

Accepted Answer

The sentence expresses a wish or hypothetical situation. In such cases, the subjunctive mood is used, requiring 'were' instead of 'was' for all persons.

Question 17

Which of the following rate is charged by banks to their most credit worthy customers?

Accepted Answer

The Prime Lending Rate (PLR) is the special, lower interest rate that commercial banks charge their most trusted and creditworthy corporate customers, reflecting their low risk of default.

Question 18

After two successive discounts of 20% and 12% an article is sold for Rs 16896. What is the marked price (in Rs) of the article? ?

Accepted Answer

Let the marked price be MP. After 20% and 12% discounts, Selling Price = MP × 0.80 × 0.88 = 0.704 MP. Given SP = 16896, so MP = 16896 / 0.704 = 24000.

Question 19

Which one of the following is not an instrument of credit control in India?

Accepted Answer

The RBI uses tools like Open Market Operations, Direct Action, and Rationing of credit for credit control. 'Variable cost reserve ratios' is a fabricated term; the actual tool is Variable Reserve Ratio (CRR/SLR).

Question 20

Δ DEF is right angled at E. If m∠F = 45o, then what is the value of Sin F x Tan F?

Accepted Answer

Given m∠F = 45o. We know Sin 45o = 1/√2 and Tan 45o = 1. Multiplying them gives (1/√2) × 1 = 1/√2.