SSC CGL Undated PYQs

Question 1

What is the area (in sq cm) of a rectangle if its diagonal is 25 cm and one of its sides is 24 cm?

Accepted Answer

Use the Pythagorean theorem to find the other side: √(25² - 24²) = √49 = 7 cm. The area is length × width, so 24 × 7 = 168 sq cm.

Question 2

_______ are chlorophyll-bearing, simple, thalloid, autotrophic and largely acquatic (both fresh water and marine) organisms.

Accepted Answer

Algae are simple, thalloid, autotrophic organisms containing chlorophyll. They are primarily aquatic, found in both freshwater and marine environments, unlike bryophytes or pteridophytes which are mostly terrestrial.

Question 3

If cosec2 θ = 625/576, then what is the value of [(sin θ – cos θ)/(sin θ + cos θ)]?

Accepted Answer

Since cosec² θ = 625/576, sin θ = 24/25. Using Pythagoras, cos θ = 7/25. Substituting these into the expression gives (24-7)/(24+7) = 17/31.

Question 4

In the following question, select the related word from the given alternatives. Hockey : Stick : : Boxing : ?

Accepted Answer

Just as hockey is played using a stick, boxing is a sport performed wearing gloves. Therefore, gloves are the correct related equipment.

Question 5

If PROJECT is coded as KILQVXG, then how will EGO be coded as?

Accepted Answer

Each letter is replaced by its opposite letter in the English alphabet (P-K, R-I, etc.). Thus, the opposite letters for E, G, and O are V, T, and L respectively.

Question 6

Who developed the theory of relativity?

Accepted Answer

Albert Einstein developed the theory of relativity (Special in 1905, General in 1915), fundamentally changing our understanding of space, time, and gravity.

Question 7

The point of intersection of all the angle bisector of a triangle is ______ of the triangle.

Accepted Answer

The point where all three angle bisectors of a triangle intersect is called the incenter. It serves as the center of the triangle's inscribed circle.

Question 8

Which of the statements given below are correct? 1. The author of 'My Country My Life' is L.K Advani. 2. 'Wings of Fire' is an Autobiography of Subhash Chandra. 3. The author of 'The Great Indian Novel' is Shashi Tharoor.

Accepted Answer

Statements 1 and 3 are correct. 'Wings of Fire' is the autobiography of Dr. A.P.J. Abdul Kalam, not Subhash Chandra Bose, making statement 2 incorrect.

Question 9

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word. Improvement Improvement

Accepted Answer

The word 'Improvement' does not contain the letter 'A', and it only has one 'T'. Therefore, the word 'Important' cannot be formed.

Question 10

A and B start from the same point. A cycles 8 km South, then turns to her right and cycles 5 km. B cycles 3 km North, then turns West and cycles 5 km, then turns to her left and cycles 4 km. Where is B with respect to A now?

Accepted Answer

A ends up at 5 km West and 8 km South. B ends up at 5 km West and 1 km South (3N - 4S). Thus, B is 7 km North of A.

Question 11

Cattle quickly swallow grass and store it in their __________.

Accepted Answer

Cattle are ruminants. They quickly swallow their food and store it in a part of the stomach called the rumen, where bacteria help break down the tough plant cellulose.

Question 12

___________ project is an ambitious Union Government Project which integrates the efforts to clean and protect the Ganga river in a comprehensive manner.

Accepted Answer

'Namami Gange Yojana' is an Integrated Conservation Mission launched by the Union Government in 2014 to accomplish the twin objectives of pollution abatement and rejuvenation of the National River Ganga.

Question 13

Which article can be used by The President of India to declare financial emergency?

Accepted Answer

Article 360 of the Indian Constitution empowers the President to proclaim a Financial Emergency if the financial stability or credit of India or any part of its territory is threatened.

Question 14

In the following question, select the odd letter from the given alternatives.

Accepted Answer

The positional values of the letters in the English alphabet are B=2, N=14, P=16, and W=23. Except W, all other letters have even positional values.

Question 15

Which of the following bonds are weakest in nature?

Accepted Answer

Hydrogen bonds are intermolecular forces, which are significantly weaker than intramolecular covalent bonds (single, double, and triple bonds) that hold atoms together within a molecule.

Question 16

In the following question, select the related number pair from the given alternatives. 534 : 2 : : ? : ?

Accepted Answer

The logic is (first digit + second digit) ÷ third digit = second number. For 534, (5+3)÷4 = 2. Similarly, for 999, (9+9)÷9 = 2.

Question 17

Correct the following equation by interchanging the two signs and two numbers. 7 x 6 + 5 – 4 = 33 7 x 6 + 5 – 4 = 33

Accepted Answer

By interchanging + and -, and 5 and 6, the equation becomes 7 x 5 - 6 + 4. Solving this gives 35 - 6 + 4 = 33, which matches the RHS.

Question 18

Which of the following pair is incorrect? ?

Accepted Answer

Nandlal Bose was a pioneer of modern Indian art and a famous painter, not a flute player. The other three pairs correctly match the artists with their fields.

Question 19

The number of trees in a town is 17640. If the numbers of trees increases annually at the rate of 5%, then how many trees were there 2 years ago?

Accepted Answer

Let the trees 2 years ago be P. With 5% annual growth, P × (105/100)² = 17640. P × (21/20)² = 17640. P = 17640 × (400/441) = 16000.

Question 20

Which of the following pair is CORRECT? I. Summer Olympics 2020 - Tokyo II. Summer Olympics 2016 - Rio de Janeiro III. Summer Olympics 2012 - London

Accepted Answer

All three pairs are correct. The Summer Olympics were hosted by London in 2012, Rio de Janeiro in 2016, and Tokyo in 2020.