SSC CGL Undated PYQs

Question 1

If A and B together do a job in 7.5 days and if A could do the job in 10 days if he worked alone. How many days would B take to do the job if he worked alone?

Accepted Answer

Total work = LCM(7.5, 10) = 30 units. Efficiency of (A+B) = 30/7.5 = 4. Efficiency of A = 30/10 = 3. B's efficiency = 4 - 3 = 1. Time for B = 30/1 = 30 days.

Question 2

ΔPQR has sides PQ and PR measuring 983 and 893 units respectively. How many such triangles are possible with all integral sides?

Accepted Answer

The third side must be strictly between the difference and sum of the two sides. Number of possible integer sides = 2 × (smaller side) - 1 = 2 × 893 - 1 = 1785.

Question 3

A man cycles 7 km East, then turns South and cycles 12 km, then turns West and cycles 7 km, then turns to his left and cycles 10 km. Where is he now with reference to his starting position?

Accepted Answer

He moves 7 km East, 12 km South, and 7 km West, aligning vertically with the start. A left turn from West goes South for 10 km. Total distance is 12+10 = 22 km South.

Question 4

Snakes, turtle, lizards and crocodiles falls under which category of animals?

Accepted Answer

Snakes, turtles, lizards, and crocodiles are cold-blooded vertebrates covered in scales. They lay eggs and breathe through lungs, which are the defining characteristics of the Reptilian class.

Question 5

The __________ uses an addressing scheme known as URL to indicate the location of files on the web.

Accepted Answer

The World Wide Web (WWW) uses Uniform Resource Locators (URLs) as a standardized naming convention to locate and access documents and resources over the internet.

Question 6

What is dry ice?

Accepted Answer

Dry ice is the solid form of carbon dioxide (CO2). It is used primarily as a cooling agent because it sublimates directly from a solid to a gas without leaving liquid residue.

Question 7

Δ DEF is right angled at E. If m∠F = 45°, then what is the value of 2 Sin F x Cot F?

Accepted Answer

Given F = 45°. We know Sin 45° = 1/√2 and Cot 45° = 1. Substituting these values: 2 × (1/√2) × 1 = √2.

Question 8

India has longest international border with which country? ?

Accepted Answer

India shares its longest international border with Bangladesh, measuring approximately 4,096 kilometers. This extensive border touches five Indian states: West Bengal, Assam, Meghalaya, Tripura, and Mizoram.

Question 9

If PRIMATE is coded as MOFJXQB, then how will COW be coded as?

Accepted Answer

Each letter in the word is shifted backward by 3 positions in the alphabet. Applying -3 to C, O, and W gives Z, L, and T respectively.

Question 10

A shopkeeper allows 25% discount on the marked price of an article and he suffered a loss of 15%. What will be the profit percent if the article is sold at marked price?

Accepted Answer

Let MP = 100. SP after 25% discount = 75. Since loss is 15%, CP = 75 / 0.85 = 1500/17. Selling at MP means profit = 100 - 1500/17 = 200/17. Profit % = (200/1500) * 100 = 13.33%.

Question 11

The Agra fort was built by ___________.

Accepted Answer

The Agra Fort was commissioned by the Mughal Emperor Akbar in 1565. It served as the main residence of the emperors of the Mughal Dynasty until 1638.

Question 12

If a3 + b3 = 72 and ab = 8 , then what is the value of a + b?

Accepted Answer

By hit and trial, let a = 4 and b = 2. Then a³ + b³ = 64 + 8 = 72, and ab = 4 × 2 = 8. Thus, a + b = 4 + 2 = 6.

Question 13

A change in which one or more new substances are formed is called _________.

Accepted Answer

A chemical change involves a chemical reaction where new substances with entirely different properties are formed, unlike physical changes where no new substance is created.

Question 14

IMF has predicted that the global economy would grow at _______ % in 2017.

Accepted Answer

In its World Economic Outlook report, the IMF projected the global economic growth rate for 2017 to be 3.5%, reflecting a slight recovery in global trade and investment.

Question 15

Who was the founder of Banaras Hindu University?

Accepted Answer

Pandit Madan Mohan Malaviya founded the Banaras Hindu University (BHU) in 1916, along with Annie Besant and Sunder Lal, to promote education and Indian culture.

Question 16

'The World Outside My Window' is written by which author?

Accepted Answer

'The World Outside My Window' is a popular book by Ruskin Bond. It is a beautiful collection of his nature writings, reflecting his deep connection with the flora and fauna of the Himalayas.

Question 17

In 1917, Mahatma Gandhi organised a satyagraha to support the peasants of the Kheda district of _________.

Accepted Answer

The Kheda Satyagraha took place in the Kheda district of Gujarat. Gandhi organized it to support peasants who were unable to pay taxes due to crop failure and a plague epidemic.

Question 18

Which one is the correct chronological order of the following events? I. Quit India Movement II. Shimla Conference III. Poona Pact IV. Cabinet Mission

Accepted Answer

The Poona Pact was signed in 1932, Quit India Movement started in 1942, Shimla Conference was held in 1945, and Cabinet Mission arrived in 1946. The correct order is III, I, II, IV.

Question 19

What is the sum of the first 11 terms of an arithmetic progression if the 4th term is 11 and the 7th term is -4?

Accepted Answer

Using a+3d=11 and a+6d=-4, we get d=-5 and a=26. The sum of 11 terms is S = 11/2 × [2(26) + 10(-5)] = 11/2 × 2 = 11.

Question 20

Which amongst the following is not a component of monetary policy in India?

Accepted Answer

Public debt is a component of fiscal policy managed by the government, not the RBI's monetary policy. Repo rate, moral suasion, and credit rationing are tools used by RBI to control money supply.