SSC CGL Undated PYQs

Question 1

The 3rd and 6th term of an arithmetic progression are 13 and -5 respectively. What is the 11th term?

Accepted Answer

Let the first term be a and common difference d. We have a+2d=13 and a+5d=-5. Solving these gives d=-6 and a=25. The 11th term is a+10d = 25-60 = -35.

Question 2

Who amidst the following is a distinguished painter? ?

Accepted Answer

Amrita Shergill was an eminent Indian painter, often called the 'Frida Kahlo of India'. The other options are famous Indian classical dancers and choreographers.

Question 3

In April 2017, Prime Minister Narendra Modi inaugurated phase-I (Link-2) pipeline canal of the ambitious Saurashtra Narmada Avtaran Irrigation (SAUNI) in which state?

Accepted Answer

The SAUNI Yojana (Saurashtra Narmada Avtaran Irrigation) is a major project in Gujarat designed to divert excess floodwater from the Sardar Sarovar Dam to drought-prone areas of Saurashtra.

Question 4

An image formed by a plane mirror, that cannot be obtained on a screen is called _______.

Accepted Answer

A virtual image is formed when light rays appear to diverge from a point behind the mirror. Because the rays do not actually meet, it cannot be projected onto a screen.

Question 5

Select the correct option: Convert binary 10110 to decimal.

Accepted Answer

To convert binary 10110 to decimal, multiply each bit by powers of 2 from right to left: (1×16) + (0×8) + (1×4) + (1×2) + (0×1) = 16 + 0 + 4 + 2 + 0 = 22.

Question 6

With which country India has signed an agreement to renew the supply of Petroleum for a period of 5 years (i.e. till 2022)?

Accepted Answer

In 2017, India and Nepal signed an agreement to renew the supply of petroleum products to Nepal for five years, ensuring continuous fuel supply through Indian Oil Corporation.

Question 7

A can finish a work in 18 days and B in 36 days. If they work on it together for 9 days, then what percent of work is left?

Accepted Answer

Total work = LCM(18, 36) = 36 units. A's efficiency = 2, B's = 1. Together they do 3 units/day. In 9 days, they complete 27 units. Left work = 9 units, which is (9/36)*100 = 25%.

Question 8

A can do 1/3rd of a job in 3 days and B can do half of the job in 9 days. If they work on it together, then in how many days can they finish half of the job?

Accepted Answer

A completes the full job in 9 days, B in 18 days. Together, they finish the full job in (9×18)/(9+18) = 6 days. Thus, half the job takes 3 days.

Question 9

Δ ABC is right angled at B. If m∠A = 60°, then what is the value of sec C.sin A?

Accepted Answer

Since ∠B = 90° and ∠A = 60°, ∠C must be 30°. We need sec 30° × sin 60°, which is (2/√3) × (√3/2) = 1.

Question 10

From the given words, select the word which cannot be formed using the letters of the given word. JAUNTILY JAUNTILY

Accepted Answer

The original word 'JAUNTILY' does not contain the letter 'E'. Therefore, the word 'NEATLY' cannot be formed from its letters.

Question 11

__________ is deﬁned as the output per unit of variable input

Accepted Answer

Average product is calculated by dividing the total product by the quantity of the variable input. It measures the average output produced by each unit of input.

Question 12

If the selling price of an item is Rs 1000 after getting a discount of 20%, then what was the marked price (in Rs)?

Accepted Answer

Let Marked Price be MP. After a 20% discount, Selling Price = 80% of MP. So, 0.8 × MP = 1000. MP = 1000 / 0.8 = Rs 1250.

Question 13

70% of the cost price of a article is equal to the 40% of its selling price. What is the proﬁt or loss percentage?

Accepted Answer

Given 70% of CP = 40% of SP. This gives the ratio CP/SP = 40/70 = 4/7. Profit = 7 - 4 = 3. Profit % = (3/4) × 100 = 75%.

Question 14

A solid cone of height 24 cm and radius of its base 8 cm is melted to form a solid cylinder of radius 6 cm and height 6 cm. In the whole process what percent of material is wasted?

Accepted Answer

Cone volume = 1/3 × π × 8² × 24 = 512π. Cylinder volume = π × 6² × 6 = 216π. Wasted volume = 512π - 216π = 296π. Waste % = (296/512) × 100 ≈ 57.8%.

Question 15

If X and Y are the two digits of the number 347XY such that the number is completely divisible by 80, then what is the value of X + Y?

Accepted Answer

For 347XY to be divisible by 80, Y must be 0. Then 347X must be divisible by 8. The last three digits 47X must be divisible by 8, which gives X=2. Thus, X+Y = 2+0 = 2.

Question 16

What is the difference in number of employees of company D and company A?

Accepted Answer

To find the required difference, identify the number of employees for companies D and A from the given data, then subtract the smaller value from the larger one to get 100.

Question 17

Who is known for the invention of 'World Wide Web'? ?

Accepted Answer

Sir Tim Berners-Lee, a British computer scientist, invented the World Wide Web in 1989 while working at CERN to help scientists share data easily.

Question 18

In which year was All India Anna Dravida Munnetra Kazhagam (AIADMK) founded?

Accepted Answer

AIADMK was founded in 1972 by M. G. Ramachandran (MGR) after he broke away from the Dravida Munnetra Kazhagam (DMK).

Question 19

'Lucky Grahak Yojana' and 'Digi Dhan Vyapar Yojana' to give cash awards to the customers and merchants was launched by which government body?

Accepted Answer

NITI Aayog launched these schemes in 2016 to promote digital payments post-demonetization, rewarding consumers and merchants for using cashless transaction methods like UPI and RuPay.

Question 20

Which blood group is universal donor?

Accepted Answer

O-negative (O–) blood has no A, B, or Rh antigens on its red blood cells. This means it won't trigger an immune response in recipients, making it the true universal donor.