SSC CGL Undated PYQs

Question 1

If -3[1-(x/2)] + 5x/3 = 1/6, then what is the value of x?

Accepted Answer

Expand the equation to -3 + 3x/2 + 5x/3 = 1/6. Multiply the entire equation by 6 to get -18 + 9x + 10x = 1. Solving gives 19x = 19, so x = 1.

Question 2

Mr. Raghav taught Geometry for 36 hours. If the time taken in teaching Ratio consitutes one-fourth of the time for Arithmetic, then for how much time (in hours) did he taught the topic of Ratio?

Accepted Answer

Based on the associated data chart (not shown), find the total time using Geometry's 36 hours. Then calculate Arithmetic's time and divide it by 4 to get 69 hours for Ratio.

Question 3

Who has built the Vijay Stambha (Tower of Victory) in Chittorgarh?

Accepted Answer

Rana Kumbha built the Vijay Stambha in 1448 to commemorate his victory over the combined armies of Malwa and Gujarat led by Mahmud Khilji.

Question 4

Which of the following carries oxygen to various parts of human body?

Accepted Answer

Red blood cells contain hemoglobin, a protein that binds to oxygen in the lungs and transports it through the bloodstream to all tissues and organs in the human body.

Question 5

In a row, there are 6 boys between A and B and A being the first boy in row. There are 3 boys between B and C. If there are 12 boys after C, then how many minimum boys are there in the row?

Accepted Answer

A is 1st. 6 boys between A and B makes B the 8th boy. 3 boys between B and C makes C the 12th boy. 12 boys after C means 12 + 12 = 24 boys total.

Question 6

Select the related letters from the given alternatives. DFI : ACF :: OQT : ?

Accepted Answer

Each letter in the first term is shifted backward by 3 positions to get the second term (D-3=A, F-3=C, I-3=F). Applying this to OQT: O-3=L, Q-3=N, T-3=Q, giving LNQ.

Question 7

What is the fourth proportional to 24, 120 and 22?

Accepted Answer

Let the fourth proportional be x. The proportion is 24 : 120 :: 22 : x. Solving for x gives x = (120 × 22) / 24 = 5 × 22 = 110.

Question 8

The population of the 6 cities are 250000, 200000, 220000, 300000, 150000 and 400000 respectively. Which is the correct order of the number of literate people in these cities? ?

Accepted Answer

Calculate the number of literate people for each city by multiplying its population by its respective literacy rate (from the given data chart), then arrange them in descending order.

Question 9

Which among the following is a 'Modifier key'?

Accepted Answer

A modifier key temporarily modifies the normal action of another key when pressed together. Control, Shift, and Alt are all standard modifier keys on a computer keyboard.

Question 10

In the formula average velocity = (u + v) /2, u is the ___________.

Accepted Answer

In kinematics, the average velocity for constant acceleration is (u + v)/2, where 'u' stands for initial velocity and 'v' stands for final velocity.

Question 11

If the shopkeeper sells an item at Rs 4400 which is marked as Rs 5000, then what is the discount that he is offering?

Accepted Answer

Discount = Marked Price - Selling Price = 5000 - 4400 = 600. Discount % = (Discount / Marked Price) × 100 = (600 / 5000) × 100 = 12%.

Question 12

The rubbing surface of a matchbox has powdered glass and a little red ________________.

Accepted Answer

The rubbing surface of a matchbox contains powdered glass for friction and red phosphorus, which ignites easily when struck by the matchstick.

Question 13

Which of the following is India's highest civilian award?

Accepted Answer

The Bharat Ratna is the highest civilian award of the Republic of India, instituted in 1954 to recognize exceptional service or performance of the highest order.

Question 14

What is the value of (1/2) Sec 30° + √2 Tan 60°?

Accepted Answer

Substitute Sec 30° = 2/√3 and Tan 60° = √3. The expression becomes (1/2)(2/√3) + √2(√3) = 1/√3 + √6 = (1 + 3√2)/√3.

Question 15

In which of the following game, ball is not used?

Accepted Answer

Badminton is played using a shuttlecock and a racket, whereas football, cricket, and tennis all require a spherical ball to play the game.

Question 16

The main mineral constituents of the continental mass are ________ and alumina.

Accepted Answer

The continental crust is primarily composed of silica and alumina, which is why its uppermost layer is often referred to as 'sial' (Si for silica and Al for alumina).

Question 17

Which phenomena shows the particle nature of light?

Accepted Answer

The photoelectric effect demonstrates light's particle nature, as light energy is absorbed in discrete packets called photons to emit electrons from a metal surface.

Question 18

A solid sphere of diameter 17.5 cm is cut into two equal halves. What will be the increase (in cm2) in the total surface area?

Accepted Answer

Cutting a sphere into two hemispheres creates two new circular bases. The increase in total surface area is 2πr². With r = 8.75 cm, the increase is 2 × (22/7) × (8.75)² = 481.25 cm².

Question 19

What is the diﬀerence in runs scored by the player against Australia and Sri Lanka?

Accepted Answer

Identify the runs scored against Australia and Sri Lanka from the given data. Subtract the smaller value from the larger one to find the exact difference, which is 256.

Question 20

If Cos θ = 5/13, then Cosec θ = ?

Accepted Answer

Cos θ = Base/Hypotenuse = 5/13. Using the Pythagorean triplet (5, 12, 13), the perpendicular is 12. Since Cosec θ = Hypotenuse/Perpendicular, the value is 13/12.