SSC CGL Undated PYQs

Question 1

The force exerted by a magnet is an example of _________.

Accepted Answer

A magnet can exert a pull or push on magnetic materials from a distance without physically touching them, making it a non-contact force.

Question 2

If the ___________ firm has zero costs or only has fixed cost, the quantity supplied in equilibrium is given by the point where the marginal revenue is zero.

Accepted Answer

For a monopoly with zero marginal cost, profit maximization (MR = MC) occurs where MR = 0. The firm produces up to this point to maximize its total revenue.

Question 3

___________ is obtained by evaporation of sea.

Accepted Answer

Seawater contains a high concentration of dissolved minerals, primarily sodium chloride. When seawater evaporates under the sun, the water turns into vapor, leaving solid salt crystals behind.

Question 4

Two cars A and B travel from one city to another, at speeds of 35 km/hr and 45 km/hr respectively. If car B takes 2 hours lesser time than car A for the journey, then the distance (in kms) between the two cities is?

Accepted Answer

Let distance be D. The time difference is D/35 - D/45 = 2. Solving this gives 10D / (35 × 45) = 2, which simplifies to D = 315 km.

Question 5

A woman in a shopping complex walks 150 m East, then she turns North and walks 180 m, then she turns West and walks 70 m, then she turns to her left and walks 180 m. Where is she now with reference to her starting position?

Accepted Answer

She goes 150m East, 180m North, 70m West, then turns left (South) for 180m. The North and South distances cancel out. She is 150 - 70 = 80m East of the start.

Question 6

∆ ABC is right angled at B. If m∠A = 30°., then Sec C =?

Accepted Answer

In right ∆ABC, ∠B = 90° and ∠A = 30°, so ∠C = 180° - 120° = 60°. The value of Sec 60° is 2.

Question 7

Nasir's birthday is on Thursday 18th May. On what day of the week will be Rehan's Birthday in the same year if Rehan was born on 19th August?

Accepted Answer

Days from May 18 to Aug 19: May(13) + Jun(30) + Jul(31) + Aug(19) = 93 days. 93 divided by 7 leaves a remainder of 2. Thursday + 2 = Saturday.

Question 8

A car travels 17 km South, then turns East and travels 11 km, then turns North and travels 9 km, then turns to its left and travels 11 km. Where is the car now with reference to its starting position?

Accepted Answer

The car goes 17 km South, 11 km East, 9 km North, and 11 km West (left turn). The East-West distances cancel out. Net distance is 17 - 9 = 8 km South.

Question 9

If Cosec θ = 17/8, then what is the value of Cos θ?

Accepted Answer

Cosec θ = Hypotenuse/Opposite = 17/8. Using the Pythagorean triplet (8, 15, 17), the adjacent side is 15. Thus, Cos θ = Adjacent/Hypotenuse = 15/17.

Question 10

The Mongols under ___________ invaded Transoxiana in north-east Iran in 1219.

Accepted Answer

In 1219, Genghis Khan led the Mongol Empire to invade Transoxiana, marking the beginning of the Mongol conquest of the Khwarazmian Empire and the Islamic world.

Question 11

Even if memory of model C was doubled it would be lesser (in GB) than that of model A by?

Accepted Answer

Multiply model C's memory by 2. Subtract this doubled value from model A's memory to find the exact difference, which results in 8 GB.

Question 12

In a certain code language, "PEN-TAN" is written as "0". How is "DEN-COB" written in that code language?

Accepted Answer

Sum the positional values of the letters in each word and find their difference. PEN (35) - TAN (35) = 0. DEN (23) - COB (20) = 3.

Question 13

Which taxi company has more taxis than A but less than D?

Accepted Answer

Based on the provided data chart or table, company C's taxi count falls strictly between the number of taxis owned by company A and company D (A < C < D).

Question 14

Who is the winner of 2016-17 Premier League (Football)?

Accepted Answer

Chelsea won the 2016-17 English Premier League title under manager Antonio Conte, securing 93 points. Tottenham Hotspur finished as the runners-up in that season.

Question 15

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

Accepted Answer

The British forced Indian farmers to grow specific crops for their needs. In Madras (now Chennai), they specifically forced cultivators to grow rice to sustain their colonial economy and feed their armies.

Question 16

In the following question, select the related number from the given alternatives. 850 : 863 : : 430 : ?

Accepted Answer

The logic is adding the sum of the digits to the number itself. 850 + (8+5+0) = 863. Similarly, 430 + (4+3+0) = 437.

Question 17

Which among the following is not a direct tax?

Accepted Answer

Income tax, wealth tax, and corporate tax are all levied directly on the income or wealth of individuals or organizations. Since all are direct taxes, 'None of these' is correct.

Question 18

Improve the bracketed part of the sentence. Father (would have been appreciated) your efforts if you had informed him.

Accepted Answer

The sentence is a third conditional, requiring 'would have + past participle' in the main clause for an unreal past condition. 'Appreciated' is the correct active form.

Question 19

Which metal is responsible for Itai-Itai disease?

Accepted Answer

Itai-Itai disease is caused by prolonged cadmium poisoning, which leads to severe bone pain and kidney failure. It was first documented in Japan due to industrial pollution.

Question 20

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:5 and area of ΔABC is 98 cm sq, what is the area (in sq cm) of quadrilateral BDEC?

Accepted Answer

Since DE || BC, ΔADE ~ ΔABC. The ratio of their sides is AD/AB = 2/7. The ratio of their areas is (2/7)² = 4/49. Area of ΔADE = (4/49) × 98 = 8. Area of BDEC = 98 - 8 = 90.