SSC CGL Undated PYQs

Question 1

Which nation will host the FIFA Men's World Cup to be held in the year 2018?

Accepted Answer

Russia hosted the 2018 FIFA Men's World Cup, marking the first time the tournament was held in Eastern Europe. France won the championship by defeating Croatia in the final.

Question 2

In the following question, by using which mathematical operator will the expression become correct? 18 ? 6 ? 9 ? 27 18 ? 6 ? 9 ? 27

Accepted Answer

Substitute the operators from option 2: 18 ÷ 6 × 9 = 27. Following BODMAS, first divide 18 by 6 to get 3, then multiply by 9 to get 27.

Question 3

Which fibre is also called as artificial silk?

Accepted Answer

Rayon is synthesized from naturally occurring cellulose (wood pulp) through chemical processing. Its smooth texture and shiny appearance closely resemble natural silk, earning it the name artificial silk.

Question 4

In how many parts is the human brain divided?

Accepted Answer

The human brain is divided into 3 main parts: the forebrain, midbrain, and hindbrain, each serving distinct and vital functions.

Question 5

Who invented bluetooth?

Accepted Answer

Dr. Jaap Haartsen invented Bluetooth in 1994 while working at Ericsson. It was developed as a wireless alternative to data cables for connecting devices over short distances.

Question 6

Arrange the given words in the sequence in which they occur in the dictionary. 1. Waste 2. Wrong 3. Witty 4. Worcester 5. Warlike 1. Waste 2. Wrong 3. Witty 4. Worcester 5. Warlike

Accepted Answer

Comparing the letters alphabetically: 'Wa' comes first (Warlike, Waste), then 'Wi' (Witty), 'Wo' (Worcester), and finally 'Wr' (Wrong). The correct sequence is 5, 1, 3, 4, 2.

Question 7

If Tan θ = 4/3, then what is the value of Sin θ?

Accepted Answer

Tan θ = Perpendicular/Base = 4/3. By Pythagoras theorem, Hypotenuse = √(4² + 3²) = 5. Therefore, Sin θ = Perpendicular/Hypotenuse = 4/5 = 0.8.

Question 8

What is the simplified value of sin2 (90 – θ) – [{sin(90 – θ)sin θ}/tan θ]?

Accepted Answer

Using complementary angles, sin(90-θ) = cos θ. The expression becomes cos²θ - [(cos θ × sin θ) / (sin θ / cos θ)]. Simplifying the second term gives cos²θ, so cos²θ - cos²θ = 0.

Question 9

During their rule the British persuaded or forced cultivators in Assam to grow __________.

Accepted Answer

The British forced Indian farmers to grow cash crops. In Assam, they specifically established large plantations and forced cultivators to grow tea due to its high demand in Europe.

Question 10

Product of three consecutive odd numbers is 1287. What is the largest of the three numbers? ?

Accepted Answer

Check the options. If the largest is 13, the consecutive odd numbers are 9, 11, and 13. Their product is 9 × 11 × 13 = 1287. Hence, 13 is correct.

Question 11

The inradius of a equilateral triangle is 10 cm. What is the circum-radius (in cm) of the same triangle? ?

Accepted Answer

For an equilateral triangle, the circumradius (R) is always exactly twice the inradius (r). Since r = 10 cm, R = 2 × 10 = 20 cm.

Question 12

What least number must be subtracted from 210, so that the sum is completely divisible by 11?

Accepted Answer

Divide 210 by 11. The quotient is 19 and the remainder is 1. Subtracting this remainder (1) from 210 makes the result perfectly divisible by 11.

Question 13

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 14

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 15

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 16

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 17

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 18

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 19

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 20

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.