SSC CGL Undated PYQs

Question 1

How many players are there in a water polo team?

Accepted Answer

A standard water polo team consists of 7 players in the water at any one time: six field players and one goalkeeper.

Question 2

Land covers about ______ of the earth's surface.

Accepted Answer

Earth's surface is covered by approximately 71% water and 29% land. Therefore, 30% is the closest and most accurate approximation among the given options.

Question 3

If 9@7=4; 6@1=10; 7@4=6; then what is the value of 8@2=?

Accepted Answer

The pattern is (First number - Second number) × 2. So, (9-7)×2 = 4 and (6-1)×2 = 10. Applying this, (8-2)×2 = 12.

Question 4

A sum amounts to Rs 7727.104 at the rate of 12% per annum compounded annually after three years. What is the value of principal (in Rs)? ?

Accepted Answer

Use the formula A = P(1 + R/100)^n. Here, 7727.104 = P(1.12)^3. Since 1.12^3 = 1.404928, dividing 7727.104 by 1.404928 gives the principal P = 5500.

Question 5

What is the full form of RNA?

Accepted Answer

RNA stands for Ribonucleic Acid. It is a vital molecule present in all living cells, primarily responsible for carrying instructions from DNA to control the synthesis of proteins.

Question 6

What is the area (in sq cm) of a rhombus if the lengths of its diagonals are 25 cm and 20 cm?

Accepted Answer

The area of a rhombus is half the product of its diagonals. Area = (1/2) × d1 × d2 = (1/2) × 25 × 20 = 250 sq cm.

Question 7

Improve the bracketed part of the sentence. When I first saw Ankit, he (was playing) cricket.

Accepted Answer

The past continuous tense 'was playing' correctly describes an ongoing action in the past when another action (seeing Ankit) occurred. No improvement is needed.

Question 8

What is the area (in sq cm) of a rectangle if its diagonal is 26 cm and one of its sides is 10 cm?

Accepted Answer

Using Pythagoras theorem, the other side is √(26² - 10²) = √576 = 24 cm. The area of the rectangle is length × width = 10 × 24 = 240 sq cm.

Question 9

A man starts running from point P at 11:00 a.m. with a speed of 10 km/hr. He runs for 2 hours and then takes a 1 hour rest. He continues this till he is caught by another man who starts at 2:00 p.m. from point P and runs non-stop at a speed of 15 km/hr towards the first man. At what time (in p.m.) will the first man be caught?

Accepted Answer

By 4:00 p.m., the first man covers 40 km and starts resting. The second man covers 30 km. The second man covers the remaining 10 km in 40 minutes, catching him at 4:40 p.m.

Question 10

If I walk at 7/6 of my usual speed, then I reach my ofﬁce 15 minutes early. What is the usual time taken (in minutes) by me to reach the ofﬁce?

Accepted Answer

Speed and time are inversely proportional. The speed ratio is 7:6, so the time ratio is 6:7. The difference of 1 unit equals 15 minutes. Usual time (7 units) is 7 × 15 = 105 minutes.

Question 11

What is the simpliﬁed value of sec6 A – tan6 A – 3 sec2 A tan2 A?

Accepted Answer

Use the identity sec²A - tan²A = 1. Cubing both sides gives sec⁶A - tan⁶A - 3sec²A tan²A(sec²A - tan²A) = 1. Substituting the identity yields 1.

Question 12

Which of the following won the Best Film in 62nd Filmfare Awards 2017?

Accepted Answer

Dangal won the Best Film award at the 62nd Filmfare Awards in 2017. Directed by Nitesh Tiwari, it was a massive critical and commercial success based on the Phogat sisters.

Question 13

What is the sum of the first 12 terms of an arithmetic progression if the first term is 3 and last term is 47?

Accepted Answer

Use the sum formula for an AP: S = n/2 × (a + l). Here, n = 12, a = 3, and l = 47. S = 12/2 × (3 + 47) = 6 × 50 = 300.

Question 14

Who was the architect of Humayun's Tomb?

Accepted Answer

Mirak Mirza Ghiyath, a Persian architect, designed Humayun's Tomb in Delhi. It was commissioned by Humayun's first wife, Bega Begum, in 1558 and is a prime example of Mughal architecture.

Question 15

India has taken the concept of 'Judicial Review' from which country's constitution? ?

Accepted Answer

The concept of Judicial Review, along with Fundamental Rights and the independence of the judiciary, was borrowed from the United States Constitution to ensure laws align with constitutional provisions.

Question 16

The average runs conceded by a bowler in 5 matches is 45 and 15.75 in other 4 matches. What is the average runs conceded by the bowler in 9 matches?

Accepted Answer

Total runs in 5 matches = 5 × 45 = 225. Total runs in 4 matches = 4 × 15.75 = 63. Total runs in 9 matches = 225 + 63 = 288. Average = 288 / 9 = 32.

Question 17

Which among the following determines the pitch of a sound?

Accepted Answer

The pitch of a sound is determined by its frequency. A higher frequency produces a higher pitch (shrill sound), while a lower frequency results in a lower pitch (deep sound).

Question 18

If Tan θ = 7/24, then what is the value of Sec θ?

Accepted Answer

Tan θ = 7/24 means Perpendicular = 7, Base = 24. Hypotenuse = √(7² + 24²) = 25. Sec θ = Hypotenuse / Base = 25/24.

Question 19

In a triangle ABC, AD is angle bisector of ∠A and AB : AC = 3 : 4. If the area of triangle ABC is 350 cm2, then what is the area (in cm2) of triangle ABD? ?

Accepted Answer

By the angle bisector theorem, BD:DC = AB:AC = 3:4. The area ratio of ABD to ADC is 3:4. Area of ABD = (3/7) × 350 = 150 cm2.

Question 20

From a point, Lokesh starts walking towards south and after walking 30 metres he turns to his right and walks 20 metres, then he turns right again and walks 30 metres. He finally turns to his left and walk 40 metres. In which direction is he with reference to the starting point? ?

Accepted Answer

Lokesh goes 30m South, turns right (West) for 20m, turns right (North) for 30m, aligning horizontally with the start. Finally, turning left (West) for 40m places him directly West of the starting point.