SSC CGL Undated PYQs

Question 1

If the amount received at the end of 2nd and 3rd year as Compound Interest on a certain Principal is Rs 2100, and Rs 2268 respectively, what is the rate (in %) of interest?

Accepted Answer

The difference between the amounts for consecutive years is the interest on the previous year's amount. Interest = 2268 - 2100 = 168. Rate = (168/2100) × 100 = 8%.

Question 2

Which of the following region is covered by tropical evergreen forest?

Accepted Answer

Tropical evergreen forests require heavy rainfall (over 200 cm). The western slopes of the Western Ghats receive abundant monsoon rain, making them ideal for these dense forests.

Question 3

The Red fort in Delhi was the residence of emperors of which dynasty in the 16th century?

Accepted Answer

The Red Fort was built by the Mughal Emperor Shah Jahan. It served as the main residence of the Mughal emperors for nearly 200 years until 1857.

Question 4

_________ is the largest phylum of Animalia which includes insects.

Accepted Answer

Arthropoda is the largest phylum in the animal kingdom. It includes insects, spiders, and crustaceans, which are characterized by jointed appendages and a hard exoskeleton.

Question 5

Which Governor General abolished the 'Sati System' in India?

Accepted Answer

Lord William Bentinck abolished the Sati system in 1829 through the Bengal Sati Regulation, strongly supported by Indian social reformer Raja Ram Mohan Roy.

Question 6

Pointing towards a girl, Chetan said "She is the daughter of the only child of my grandmother". How is Chetan related to that girl?

Accepted Answer

Chetan's grandmother's only child is Chetan's parent (father/mother). The girl is the daughter of this parent, making her Chetan's sister. Therefore, Chetan is the brother of that girl.

Question 7

Who selects the Social Audit Committee under MGNREGA scheme?

Accepted Answer

Under the MGNREGA scheme, the Gram Sabha is empowered to conduct regular social audits of all projects within the Gram Panchayat and selects the members of the Social Audit Committee.

Question 8

The method of soil conservation in which stones, grass, soil are used to build barriers along contours and trenches are made in front of the barriers to collect water is called?

Accepted Answer

Contour barriers involve building barriers using stones, grass, and soil along contours. Trenches are dug in front to collect water, which reduces runoff and prevents soil erosion.

Question 9

If a shopkeeper sells an item at Rs 4200 which is marked as Rs 4800, then what is the discount (in %) that he is offering?

Accepted Answer

Discount = Marked Price - Selling Price = 4800 - 4200 = 600. Discount percentage is calculated on MP: (600 / 4800) × 100 = 1/8 × 100 = 12.5%.

Question 10

If 2x + (9/x) = 9, then what is the minimum value of x2 + (1/x2)?

Accepted Answer

Solve the quadratic equation 2x^2 - 9x + 9 = 0 to get x = 3 or x = 3/2. For x = 3, the value is 82/9. For x = 3/2, it is 97/36. The minimum is 97/36.

Question 11

Among four books, Book1 is twice as heavy as Book 2. Book 3's weight is half of Book 2's weight. Book 4 is 60 grams more as compared to Book 2 but 60 grams less as compared Book 1. Which book is heaviest?

Accepted Answer

Let Book 2 = x. Book 1 = 2x, Book 3 = x/2. Book 4 = x + 60 = 2x - 60, so x = 120. Weights are 240, 120, 60, and 180. Book 1 is heaviest.

Question 12

Which among the following is an example of solid sol?

Accepted Answer

A solid sol is a colloidal system where solid particles are dispersed in a solid medium. Coloured gemstones are classic examples of this type of colloid.

Question 13

Who among the following is not a member of any of the two houses of our country?

Accepted Answer

The President of India is an integral part of the Parliament but is not a member of either the Lok Sabha or the Rajya Sabha. Ministers must be members of either house.

Question 14

Who won the 2017 Pulitzer Prize for Drama 'Sweat'?

Accepted Answer

Lynn Nottage won the 2017 Pulitzer Prize for Drama for her play 'Sweat', which explores the struggles of working-class Americans facing deindustrialization.

Question 15

1. The author of the novel 'Darkness at Noon' is Victor LaValle. 2. The author of the novel 'The Great Gatsby' is F. Scott Fitzgerald. 3. The author of the novel 'The Sound and the Fury' is L. Ron Hubbard. Which of the statements given above are not correct?

Accepted Answer

'Darkness at Noon' was written by Arthur Koestler, and 'The Sound and the Fury' by William Faulkner. Thus, statements 1 and 3 are incorrect. Statement 2 is correct.

Question 16

If (5x – y)/(5x + y) = 3/7, then what is the value of (4x2 + y2 – 4xy)/(9x2 + 16y2 + 24xy)?

Accepted Answer

Cross-multiply to get 35x - 7y = 15x + 3y, which simplifies to y = 2x. The numerator is (2x - y)^2. Substituting y = 2x gives 0, making the whole expression 0.

Question 17

___________ is a straw coloured, viscous ﬂuid constituting nearly 55 per cent of the blood.

Accepted Answer

Plasma is the pale yellow, liquid component of blood that holds the blood cells in suspension. It makes up about 55% of the body's total blood volume.

Question 18

In the following question, select the related number from the given alternatives. 65 : 82 : : 145 : ?

Accepted Answer

The pattern is n² + 1. 65 = 8² + 1, and 82 = 9² + 1. Similarly, 145 = 12² + 1, so the next number is 13² + 1 = 170.

Question 19

A, B and C can complete a work in 10, 12 and 15 days respectively. All three of them starts together but after 2 days A leaves the job and B left the job 3 days before the work was completed. C completed the remaining work alone. In how many days was the total work completed?

Accepted Answer

Total work = LCM(10,12,15) = 60 units. Efficiencies: A=6, B=5, C=4. Let total days be T. A works 2 days, B works (T-3) days, C works T days. 12 + 5(T-3) + 4T = 60. Solving gives T=7.

Question 20

How many Fundamental Duties are mentioned in Indian constitution?

Accepted Answer

Originally, 10 Fundamental Duties were added by the 42nd Amendment in 1976. The 11th duty was added by the 86th Amendment in 2002, making the total 11.