SSC CGL Undated PYQs

Question 1

By selling 90 pens for Rs 80 a man loses 20%. What should be the selling price (in Rs) of 90 pens for 20% profit?

Accepted Answer

SP is Rs 80 at a 20% loss, so the CP of 90 pens is 80 / 0.8 = Rs 100. For a 20% profit, the new SP = 100 * 1.2 = Rs 120.

Question 2

The weights of 4 boxes are 30, 40, 50 and 80 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?

Accepted Answer

Check the combinations: 30+80=110, 40+80=120, and 50+80=130. No combination of the given weights (30, 40, 50, 80) adds up to exactly 100 kg.

Question 3

Improve the bracketed part of the sentence. William Shakespeare is the greatest of (all other) writers.

Accepted Answer

When using the superlative degree ('greatest'), we compare one item to the entire group. Therefore, 'all the' is correct, as 'other' is redundant and grammatically incorrect in this context.

Question 4

If Data Interpretation and Modern Maths were taught for a combined time of 96 hours, then for how much time (in hours) were Number system and Geometry taught?

Accepted Answer

Using the provided chart, find the ratio of the combined value of Number System and Geometry to DI and Modern Maths. Multiply this ratio by 96 to get 232 hours.

Question 5

Select the related word from the given alternatives. Alive : Dead :: Question : ?

Accepted Answer

The words 'Alive' and 'Dead' are antonyms. Following the same logic, the antonym or direct counterpart of a 'Question' is an 'Answer'.

Question 6

Which Indian state is the largest in terms of the total area covered ?

Accepted Answer

Rajasthan is the largest state in India by area, covering approximately 342,239 sq km. It accounts for about 10.4% of India's total geographical area.

Question 7

If Sec θ = 13/12, then Cot θ = ?

Accepted Answer

Sec θ = 13/12 means hypotenuse = 13 and base = 12. The perpendicular is √(13² - 12²) = 5. Cot θ = base/perpendicular = 12/5.

Question 8

Who invented the thermos flask?

Accepted Answer

James Dewar invented the thermos flask (vacuum flask) in 1892. He designed it with an inner and outer wall separated by a vacuum to prevent heat transfer.

Question 9

Fog, clouds, mist are examples of _______.

Accepted Answer

Fog, clouds, and mist are liquid aerosols. They consist of fine liquid droplets (dispersed phase) suspended in a gas like air (dispersion medium).

Question 10

What is the role of Pneumatophores?

Accepted Answer

Pneumatophores are specialized aerial roots found in mangrove plants. They grow upward out of waterlogged mud to absorb oxygen directly from the air for respiration.

Question 11

Select the correct option: Convert binary 1101111 to decimal.

Accepted Answer

Multiply each bit by its corresponding power of 2: 64 + 32 + 0 + 8 + 4 + 2 + 1. Summing these values gives 111 in decimal.

Question 12

In the following question, select the related number from the given alternatives. 4 : 17 : : 7 : ?

Accepted Answer

The pattern follows the rule x : x² + 1. Here, 4² + 1 = 17. Applying the same logic to 7, we get 7² + 1 = 49 + 1 = 50.

Question 13

Improve the bracketed part of the sentence. He has painted that picture so often that he can do it with his (eyes closed).

Accepted Answer

The phrase 'with his eyes closed' is a correct idiom meaning to do something effortlessly due to extensive practice. No improvement is needed.

Question 14

What is the area (in sq cm) of a circle whose circumference is 22 cm?

Accepted Answer

Circumference = 2πr = 22, so r = 22 × (7/44) = 3.5 cm. Area = πr² = (22/7) × 3.5 × 3.5 = 38.5 sq cm.

Question 15

PQR is a right angled triangle in which ∠R = 90°. If RS ⊥ PQ, PR = 3 cm and RQ = 4 cm, then what is the value of RS (in cm)?

Accepted Answer

Calculate hypotenuse PQ = √(3² + 4²) = 5 cm. Using the area formula, PR × RQ = PQ × RS. So, 3 × 4 = 5 × RS, giving RS = 12/5 cm.

Question 16

Which of the following trees shed their leaves once in a year?

Accepted Answer

Deciduous trees shed their leaves annually, usually in autumn, to conserve water and energy during harsh weather conditions. Evergreen trees keep their leaves year-round.

Question 17

Who was the winner of 2015 Men's Cricket World Cup?

Accepted Answer

Australia won the 2015 Men's Cricket World Cup by defeating New Zealand in the final at the MCG. This victory marked their fifth Cricket World Cup title.

Question 18

Which of the following does not hold true for Animal belonging to Phylum Chordate?

Accepted Answer

Chordates have a ventral heart, not a dorsal one. Non-chordates typically have a dorsal heart. The other options (notochord, pharyngeal gill slits, post-anal tail) are defining characteristics of chordates.

Question 19

Which of the statements given below are correct? 1. The author of 'A Foreign Policy For India' is L.K Advani. 2. 'Wings of Fire' is a book written by A.P.J Abdul kalaam. 3. 'Open' is an Autobiography of   Andre Agassi.

Accepted Answer

Statement 1 is incorrect because 'A Foreign Policy For India' was authored by I.K. Gujral, not L.K. Advani. Statements 2 and 3 correctly match the books with their respective authors.

Question 20

Who is the author of the book titled 'Citizen and Society'?

Accepted Answer

'Citizen and Society' was written by the former Vice President of India, Mohammad Hamid Ansari. The book was released in 2016 by the then President Pranab Mukherjee.