SSC CGL Undated PYQs

Question 1

The collection of all possible combinations of the goods and services that can be produced from a given amount of resources and a given stock of technological knowledge is called the ____________ of the economy.

Accepted Answer

It represents the maximum potential output of an economy given its resources and technology, defining the production possibility set or frontier.

Question 2

In a row of 74 girls, Shweta is 27th from left end. Palak is 7th to the right of Shweta. What is Palak's position from the right end of the row?

Accepted Answer

Palak's position from the left = 27 + 7 = 34. Her position from the right end = Total - Left + 1 = 74 - 34 + 1 = 41.

Question 3

On the basis of distribution, resources can be classified into ____________?

Accepted Answer

Based on distribution, resources are classified as ubiquitous (found everywhere, like air) or localized (found in specific places). Actual and potential classifications are based on the level of development.

Question 4

Price of a diamond is directly proportional to square of its weight. A man broke the diamond accidently in three pieces in the ratio of 3 : 5 : 7 and thus loses Rs 42600. What was the original price (in Rs) of the diamond?

Accepted Answer

Total weight = 3+5+7 = 15. Original price ∝ 15² = 225. New price ∝ 3² + 5² + 7² = 83. Loss = 225 - 83 = 142 units. 142 units = 42600, so 1 unit = 300. Original price = 225 × 300 = 67500.

Question 5

What is the value of the Least Distance of Distinct vision (in cm) for a normal human being?

Accepted Answer

For a normal human eye, the least distance of distinct vision is 25 cm. Objects closer than this appear blurred because the eye lens cannot accommodate further.

Question 6

19th SAARC Summit was planned to be held in November 2016 but it got postponed. Which country was its host?

Accepted Answer

The 19th SAARC Summit was scheduled to be held in Islamabad, Pakistan in November 2016. It was cancelled after India and other nations boycotted it following the Uri terror attack.

Question 7

PQRS is a cyclic quadrilateral and PQ is the diameter of the circle. If ∠RPQ = 38°, then what is the value (in degrees) of ∠PSR? ?

Accepted Answer

Since PQ is the diameter, ∠PRQ = 90°. In ∆PRQ, ∠PQR = 180° - (90° + 38°) = 52°. For cyclic quadrilateral PQRS, opposite angles sum to 180°, so ∠PSR = 180° - 52° = 128°.

Question 8

ΔXYZ is similar to ΔPQR. If ratio of Perimeter of ΔXYZ and Perimeter of ΔPQR is 16:9 and PQ = 3.6 cm, then what is the length(in cm) of XY?

Accepted Answer

For similar triangles, the ratio of perimeters equals the ratio of corresponding sides. So, XY/PQ = 16/9. Substituting PQ = 3.6 gives XY = (16/9) × 3.6 = 6.4 cm.

Question 9

What are isobars?

Accepted Answer

Isobars are atoms of different chemical elements that have the same mass number (total protons and neutrons) but different atomic numbers (protons). Example: Argon-40 and Calcium-40.

Question 10

In the following question, select the missing number from the given series. 13, 27, 56, 115, ?

Accepted Answer

The pattern is ×2+1, ×2+2, ×2+3, ×2+4. Following this, 115 × 2 + 4 = 230 + 4 = 234.

Question 11

___________ is the most ecologically relevant environmental factor.

Accepted Answer

Temperature is the most ecologically relevant environmental factor because it directly affects enzyme kinetics, thereby regulating the basal metabolism and physiological functions of all organisms.

Question 12

Which of the following is NOT a primary green house gas in the earth's atmosphere?

Accepted Answer

Primary greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Hydrogen is not a greenhouse gas as it does not absorb infrared radiation in the atmosphere.

Question 13

What is the sum of the first 13 terms of an arithmetic progression if the first term is -10 and last term is 26?

Accepted Answer

Use the AP sum formula Sn = n/2(a + l). Here, n = 13, a = -10, and l = 26. So, Sum = 13/2(-10 + 26) = 13/2(16) = 13 × 8 = 104.

Question 14

If Company B's department which employs 20% of its employees is sold off to company F, then company F will now have how many employees?

Accepted Answer

Based on the given chart data, calculate 20% of Company B's total employees and add this number to Company F's initial employee count to get the new total of 450.

Question 15

Select the related letters from the given alternatives. CAE : XZV :: JHL : ?

Accepted Answer

Each letter is replaced by its opposite letter in the English alphabet (C-X, A-Z, E-V). Similarly, the opposite letters for J, H, and L are Q, S, and O respectively.

Question 16

What is the quotient when 1359 is divided by 48?

Accepted Answer

Divide 1359 by 48. 48 × 28 = 1344, leaving a remainder of 15. Therefore, the quotient is 28.

Question 17

__________ is the interaction in which one species benefits and the other is neither harmed nor benefited.

Accepted Answer

Commensalism is a symbiotic relationship where one organism benefits while the other remains completely unaffected, such as barnacles attaching to whales.

Question 18

_____________ scheme has been introduced by the Central Government to provide equal primary education to all budding children across India.

Accepted Answer

Vidyanjali Yojana was launched by the Ministry of Education to boost the quality of education in government schools by encouraging volunteerism and community participation in primary education.

Question 19

Improve the bracketed part of the sentence. She is (the best and wisest) girl in the class.

Accepted Answer

When two superlative adjectives refer to the same noun, the definite article 'the' should precede both adjectives for emphasis and grammatical correctness.

Question 20

In a certain code language, "CASIO" is written as "3119915". How is "CITIZEN" written in that code language?

Accepted Answer

The code represents the alphabetical position of each letter. C=3, I=9, T=20, I=9, Z=26, E=5, N=14. Combining these gives 3920926514.