SSC CGL Undated PYQs

Question 1

What is the average of all numbers between 8 and 74 which are divisible by 7?

Accepted Answer

The numbers divisible by 7 between 8 and 74 form an arithmetic progression from 14 to 70. The average is (first term + last term) / 2 = (14 + 70) / 2 = 42.

Question 2

In the following question, select the missing number from the given series. 19, 26, 45, 71, 116, ? 19, 26, 45, 71, 116, ?

Accepted Answer

The series follows a Fibonacci-like pattern where each term is the sum of the previous two terms. 19+26=45, 26+45=71, 45+71=116. Thus, the next term is 71+116=187.

Question 3

Which country is headed towards a confrontation over Gibraltar with Spain?

Accepted Answer

Gibraltar is a British Overseas Territory located at the southern tip of the Iberian Peninsula. Spain claims sovereignty over it, leading to ongoing diplomatic tensions and confrontations with the United Kingdom.

Question 4

A can do a work in 8 days, B can do the same work in 10 days and C can do the same work in 12 days. If all three of them do the same work together and they are paid Rs 7400, then what is the share (in Rs) of B? 9/7/2017 Staff Selection Commision http://thepracticetest.in/cs_cglet1_17/response_questions.php?t_id=MTAwODIwMTc=&appid=1368062d74107fc05177712c90c3885c 19/27

Accepted Answer

Efficiencies are inversely proportional to time. Ratio of efficiencies = 1/8 : 1/10 : 1/12 = 15:12:10. Total parts = 37. B's share = (12/37) × 7400 = Rs 2400.

Question 5

Which of the following Country doesn't have a written Constitution?

Accepted Answer

The United Kingdom does not have a single, codified written constitution. Instead, its constitution is unwritten, formed by acts of Parliament, court judgments, and conventions over centuries.

Question 6

If (x – 2) and (x + 3) are the factors of the equation x2 + k1x + k2 = 0, then what are the values of k1 and k2?

Accepted Answer

Expand the factors: (x - 2)(x + 3) = x^2 + x - 6. Comparing this with x^2 + k1x + k2 = 0, we get k1 = 1 and k2 = -6.

Question 7

Which of the following is the largest gland in human body? ?

Accepted Answer

The liver is the largest gland and the largest internal organ in the human body. It secretes bile and performs numerous vital metabolic functions.

Question 8

Arrange the given words in the sequence in which they occur in the dictionary. 1. Flinching 2. Flintlock 3. Flinpites 4. Flintlocks 5. Flinchers 1. Flinching 2. Flintlock 3. Flinpites 4. Flintlocks 5. Flinchers

Accepted Answer

Compare letter by letter. 'Flinch' is common in 1 and 5; 'e' comes before 'i', so 5 then 1. Next is 'p' (3). Finally, 'Flintlock' (2) precedes 'Flintlocks' (4). Order: 5, 1, 3, 2, 4.

Question 9

The market structure called monopoly exists where there is exactly ______ seller in any market.

Accepted Answer

A monopoly is a market structure characterized by a single seller dominating the entire market, offering a unique product with no close substitutes.

Question 10

What is the simplified value of cosec6 A – cot6 A – 3 cosec2 A cot2 A?

Accepted Answer

Use the algebraic identity (a - b)³ = a³ - b³ - 3ab(a - b). Let a = cosec² A and b = cot² A. Since cosec² A - cot² A = 1, the expression simplifies to 1³ = 1.

Question 11

A farmer buys a goat and a sheep for Rs 3500. He sold the sheep at a profit of 20 percent and the goat at a loss of 10 percent. If he sold both the animals at the same price, then the cost price (in Rs) of the cheaper animal was?

Accepted Answer

Let CP of sheep be S and goat be G. S + G = 3500. Selling prices are equal: 1.2S = 0.9G, so S/G = 3/4. The cheaper animal costs (3/7) × 3500 = Rs 1500.

Question 12

Who is the author of the book 'Akhada: The Authorized Biography of Mahavir Singh Phogat'?

Accepted Answer

Sports journalist Saurabh Duggal wrote 'Akhada', which chronicles the inspiring life of wrestling coach Mahavir Singh Phogat and his daughters' journey to international wrestling success.

Question 13

If 13 # 9 = 94 and 18 # 7 = 100, then 24 # 6 = ?

Accepted Answer

The pattern is (A - 1) × (B - 1) - 2. For 24 # 6: (24 - 1) × (6 - 1) - 2 = 23 × 5 - 2 = 113.

Question 14

Which one of the following is a bad Thermal Conductor?

Accepted Answer

Glass is a poor conductor of heat (an insulator) because its electrons are tightly bound, unlike metals such as silver, copper, and aluminium which are excellent conductors.

Question 15

_________ is any attribute of the organism (morphological, physiological, behavioural) that enables the organism to survive and reproduce in its habitat.

Accepted Answer

Adaptation refers to the morphological, physiological, or behavioral traits that evolve over time to help an organism survive and reproduce in its specific environment.

Question 16

Select the related number from the given alternatives. 95 : 105 :: 89 : ? 95 : 105 :: 89 : ?

Accepted Answer

The pattern follows (100 - x) : (100 + x). Since 95 = 100 - 5 and 105 = 100 + 5, similarly 89 = 100 - 11, so the next number is 100 + 11 = 111.

Question 17

Which of the following is not a plant hormone? ?

Accepted Answer

Thyroxin is an animal hormone secreted by the thyroid gland to regulate metabolism. Gibberellic, auxins, and cytokinins are all plant hormones that control growth.

Question 18

In which year did Kyoto Protocol came into force?

Accepted Answer

The Kyoto Protocol, an international treaty to reduce greenhouse gas emissions, was adopted in 1997 but officially came into force on February 16, 2005, after Russia's ratification.

Question 19

The Chola kingdom mostly ruled which region of India?

Accepted Answer

The Chola dynasty was a prominent Tamil empire that ruled primarily in South India, particularly in the Kaveri river valley, from the 9th to the 13th century.

Question 20

A man makes four trips of equal distances. His speed on first trip was 60 km/hr and in each subsequent trip his speed was half of the previous trip. What is the average speed (in km/hr) of the man in these four trips?

Accepted Answer

Let each distance be 60 km. Speeds are 60, 30, 15, and 7.5 km/hr. Total time = 1 + 2 + 4 + 8 = 15 hours. Average speed = (4 × 60) / 15 = 16 km/hr.