SSC CGL Undated PYQs

Question 1

Name the estuary on the border of India and Pakistan?

Accepted Answer

Sir Creek is a 96-km tidal estuary in the marshlands of the Indus River Delta, forming a disputed border between India (Gujarat) and Pakistan (Sindh).

Question 2

If the amount received at 10% per annum Compound interest after 3 yrs is Rs 19965, then what will have been the principal (in Rs) amount?

Accepted Answer

Amount = P(1 + R/100)^T. So, 19965 = P(1 + 10/100)^3 = P(11/10)^3. Solving this, P = 19965 × (1000/1331) = 15 × 1000 = 15000.

Question 3

With which of its neighbouring country India has Kalapani territorial dispute?

Accepted Answer

The Kalapani territory is a disputed border area between India and Nepal. It is administered by India as part of Uttarakhand, but Nepal claims it under the 1816 Treaty of Sugauli.

Question 4

"Hema Malini : Beyond the Dream Girl" is authored by which author? ?

Accepted Answer

"Hema Malini: Beyond the Dream Girl" is an authorized biography written by journalist and author Ram Kamal Mukherjee. It was published in 2017 and features a foreword by Prime Minister Narendra Modi.

Question 5

The passage of an electric current through a conducting liquid causes ___________.

Accepted Answer

Passing electric current through a conducting liquid (electrolyte) causes chemical changes, known as electrolysis. This results in the formation of new substances, making it a chemical reaction.

Question 6

By what percent collections of movie D were lower than that of movie B ?

Accepted Answer

To find the percentage by which D is lower than B, calculate ((B - D) / B) × 100. Based on the given data, this results in exactly 40%.

Question 7

Select the related number from the given alternatives. 0.5 : 2 :: 0.125 : ? 0.5 : 2 :: 0.125 : ?

Accepted Answer

0.5 can be written as 1/2, and its reciprocal is 2. Similarly, 0.125 is 1/8, and its reciprocal is 8.

Question 8

Who invented radar?

Accepted Answer

A.H. Taylor and Leo C. Young of the U.S. Naval Research Laboratory are credited with the early development of radar technology in 1922 by detecting ships using continuous-wave radar.

Question 9

______________ scheme was launched by the Central Government to create awareness about the cleanliness of the children.

Accepted Answer

The Bal Swachhta Mission was launched in 2014 by the Central Government to promote hygiene and cleanliness among children, coinciding with the Swachh Bharat Abhiyan.

Question 10

A company, at the time of inflation reduced the staff in the ratio 5 : 3 and average salary per employee is increased in the ratio 7 : 8. By doing so, the company saved Rs 55000. What was the initial expenditure (in Rs) of company?

Accepted Answer

Initial expenditure ratio is 5×7 = 35. New expenditure is 3×8 = 24. Savings = 35 - 24 = 11 units. Since 11 units = Rs 55000, 1 unit = 5000. Initial expenditure = 35 × 5000 = Rs 175000.

Question 11

Which article of Indian constitution has the provision for National Emergency?

Accepted Answer

Article 352 of the Indian Constitution deals with National Emergency, declared due to war, external aggression, or armed rebellion. Article 356 is for State Emergency and 360 for Financial Emergency.

Question 12

A wholesaler sells a good to a retailer at a proﬁt of 5% and the retailer sells it to a customer at a proﬁt of 10%. If the customer pays Rs. 2,000, what had it cost (in Rs) the wholesaler?

Accepted Answer

Let the wholesaler's cost be x. The successive selling price is x × 1.05 × 1.10 = 2000. Solving this gives x = 2000 / 1.155, which is approximately 1731.6.

Question 13

In the following reaction, fill in the blank. Acid + Base → _______ + Water

Accepted Answer

This is a classic neutralization reaction. When an acid reacts with a base, they neutralize each other's properties to produce a salt and water as the final products.

Question 14

Which of the following is most important for absorption of heat radiated from the Sun as well as from the Earth?

Accepted Answer

Carbon dioxide is a major greenhouse gas. It effectively absorbs infrared radiation emitted by the Earth and heat from the Sun, trapping it in the atmosphere and causing the greenhouse effect.

Question 15

Arrange the given words in the sequence in which they occur in the dictionary. 1. Effacers 2. Effacing 3. Effaceable 4. Effacements 5. Effacement 1. Effacers 2. Effacing 3. Effaceable 4. Effacements 5. Effacement

Accepted Answer

Compare the letters. 'Efface' is common in 1, 3, 4, and 5, while 2 has 'Effaci', making it last. Among the rest, 'a' comes first (3), then 'm' (5, 4), and 'r' (1). Thus, 3, 5, 4, 1, 2.

Question 16

The average of 3 consecutive even numbers is A. If next 5 even numbers are added, then what is the average of these 8 numbers?

Accepted Answer

In a series of consecutive even numbers, adding each new number increases the average by 1. Since 5 new even numbers are added, the average increases by 5. New average = A + 5.

Question 17

Who is the author of ‘The Windfall’?

Accepted Answer

'The Windfall' is a debut novel written by Diksha Basu, published in 2017. It humorously explores the life of a middle-class Delhi family that suddenly becomes wealthy.

Question 18

How many medals in all did India win at the Rio Olympics 2016?

Accepted Answer

India won exactly 2 medals at the 2016 Rio Olympics: a silver by P.V. Sindhu in badminton and a bronze by Sakshi Malik in wrestling.

Question 19

X and Y start from the same point. X walks 40 m north, then turns West and walks 80 m, then turns to his right and walks 50 m. At the same time, Y walks 90 m North. Where is Y now with respect to the position of X? 9/7/2017 Staff Selection Commision

Accepted Answer

X's final position is 80m West and 90m (40+50) North of the start. Y is 90m North of the start. Therefore, Y is 80m East of X.

Question 20

What is the minimum distance (in metres) required to hear an echo? 9/8/2017 Staff Selection Commision 14/27

Accepted Answer

To hear an echo, a minimum time gap of 0.1s is needed. At a sound speed of 344 m/s, the total distance is 34.4m, making the one-way distance approximately 17 metres.