SSC CGL Undated PYQs

Question 1

What is the other name of Galileo's law of falling bodies?

Accepted Answer

Galileo's law of falling bodies led to the concept of inertia, stating objects maintain their state of motion unless acted upon by a force, which is exactly Newton's first law.

Question 2

With which country India did its seventh edition of bilateral EKUVERIN Exercise 2016 at Kadhdhoo?

Accepted Answer

Exercise EKUVERIN is a joint military exercise conducted between India and the Maldives. The 7th edition was held in 2016 at Kadhdhoo, Maldives, focusing on counter-terrorism operations.

Question 3

P is a point outside the circle at distance of 6.5 cm from centre O of the circle. PR be a secant such that it intersects the circle at Q and R. If PQ = 4.5 cm and QR = 3.5 cm, then what is the radius (in cm) of the circle?

Accepted Answer

Using the secant property: PQ × PR = OP² - r². Here, PR = 4.5 + 3.5 = 8. So, 4.5 × 8 = 6.5² - r², which gives 36 = 42.25 - r². Thus, r² = 6.25, meaning r = 2.5 cm.

Question 4

What is the area (in sq cm) of a regular hexagon of side 9 cm?

Accepted Answer

The area of a regular hexagon is calculated using the formula (3√3/2) × a², where 'a' is the side length. For a = 9, Area = (3√3/2) × 81 = 243√3/2.

Question 5

Select the related word from the given alternatives. Tongue : Taste :: Nose : ?

Accepted Answer

The tongue is the primary sensory organ used for tasting. Similarly, the nose is the sensory organ used for the function of smelling.

Question 6

What is the average of all numbers between 11 and 80 which are divisible by 6?

Accepted Answer

The numbers form an arithmetic progression from 12 to 78. The average of an AP is (first term + last term)/2. So, (12 + 78)/2 = 90/2 = 45.

Question 7

The method of soil conservation in the coastal and dry regions where rows of trees are planted to check the wind movement to protect soil cover is called?

Accepted Answer

Shelter belts involve planting rows of trees to block wind, significantly reducing wind erosion in coastal and dry areas. This effectively protects the valuable topsoil from being blown away.

Question 8

24% people who were mailed the survey questionnaire answered the survey. The survey questionnaire was mailed to how many people?

Accepted Answer

Assuming the missing data is that 1200 people answered the survey. If 24% of the total equals 1200, then the total number of people is (1200 / 24) × 100 = 5000.

Question 9

_____________ means cases that can be directly considered by the Supreme Court without going to the lower courts before that.

Accepted Answer

Original Jurisdiction (Article 131) allows the Supreme Court to hear disputes directly, such as those between the Centre and States, without them being heard in lower courts first.

Question 10

In a majority of flowering plants, out of the four megaspores, what is the ratio of functional and degenerate megaspores?

Accepted Answer

In most angiosperms, megasporogenesis produces four megaspores. Three of them degenerate, leaving only one functional megaspore to develop into the female gametophyte. Thus, the ratio is 1:3.

Question 11

If x3 – y3 = 81 and x – y = 3, then what is the value of x2 + y2?

Accepted Answer

Use x³ - y³ = (x - y)(x² + xy + y²) to get x² + xy + y² = 27. Since (x - y)² = 9, we find xy = 6. Thus, x² + y² = 27 - 6 = 21.

Question 12

Which base is present in soap?

Accepted Answer

Soap is made via saponification, where fats or oils react with a strong base like sodium hydroxide (NaOH) or potassium hydroxide (KOH) to form soap salts.

Question 13

Which of the following has the supreme command of the Indian Defence Forces?

Accepted Answer

According to Article 53(2) of the Indian Constitution, the supreme command of the Defence Forces of the Union is vested in the President of India.

Question 14

Select the related number from the given alternatives. 39 : 52 :: 51 : ?

Accepted Answer

The numbers follow a 3:4 ratio. 39 is 13 × 3 and 52 is 13 × 4. Similarly, 51 is 17 × 3, so the next number must be 17 × 4 = 68.

Question 15

Three boxes of capacity 24 kg, 36 kg and 84 kg are completely filled with three varieties of wheat A, B and C respectively. All the three boxes were emptied and the three types of wheat were thoroughly mixed and the mixture was put back in the three boxes. How many kg of type A wheat would be there in the third box (in kg)?

Accepted Answer

The total mixture is 144 kg, with type A being 24 kg. The fraction of A in the mixture is 24/144 = 1/6. The third box holds 84 kg, so it contains (1/6) * 84 = 14 kg of type A.

Question 16

Who is the only Indian cricketer to have received the Polly Umrigar award 3 times?

Accepted Answer

Virat Kohli is the only Indian cricketer to win the prestigious BCCI Polly Umrigar Award three times, securing it in the 2011-12, 2014-15, and 2015-16 seasons for his outstanding international performances.

Question 17

Red data book contains data of which of the following?

Accepted Answer

The Red Data Book, maintained by the IUCN, is a comprehensive document that records and details all endangered and rare species of plants, animals, and fungi globally.

Question 18

A man travelled a distance of 60 km in 7 hours. He travelled partly on foot @ 6 km/hr and partly on bicycle @ 12 km/hr. What is the distance (in kms) travelled on foot?

Accepted Answer

Let time on foot be t hours. Then 6t + 12(7 - t) = 60. Solving gives 6t = 24, so t = 4 hours. Distance on foot = 6 × 4 = 24 km.

Question 19

India is the ______ largest country in the world.

Accepted Answer

India is the 7th largest country in the world by total area, covering approximately 3.28 million square kilometers. Russia is the largest.

Question 20

Total population of City 6 is 200000 and the total population of City 2 is 220000. What is the respective ratio of literate males of City 2 and literate females of City 6? ?

Accepted Answer

Calculate literate males in City 2 using its population (220000) and given chart data. Do the same for literate females in City 6 (200000). Divide the two values to get the ratio 595:348.