SSC CGL Undated PYQs

Question 1

In the following question, select the missing number from the given series. 7, 19, 42, 87, ?

Accepted Answer

The pattern is ×2 + 5, ×2 + 4, ×2 + 3, and so on. So, 87 × 2 + 2 = 174 + 2 = 176.

Question 2

SAARC Agriculture Centre (SAC) is based in which city?

Accepted Answer

The SAARC Agriculture Centre (SAC) is the first regional centre of SAARC, established in 1988. It is headquartered in Dhaka, Bangladesh, to promote agricultural research and development.

Question 3

____________ is a cold desert lying in the Great Himalayas.

Accepted Answer

Ladakh is a high-altitude cold desert located in the Great Himalayas, known for its freezing temperatures and arid conditions. The other options are mountain ranges in central and western India.

Question 4

If x1/4 + x-1/4 = 2, then what is the value of x81 + (1/x81)?

Accepted Answer

Given x^(1/4) + 1/x^(1/4) = 2. This is only possible when x^(1/4) = 1, which means x = 1. Substituting x = 1 into x^81 + 1/x^81 gives 1 + 1 = 2.

Question 5

A sum fetched a total simple interest of Rs.5,400 at the rate of 12.5 %/yr in 4 years. What is the sum (in Rs)?

Accepted Answer

Using the formula SI = (P × R × T) / 100, we get 5400 = (P × 12.5 × 4) / 100. This simplifies to 5400 = P / 2, so P = 10800.

Question 6

The average cost of 4 items in a shopping list is Rs 1,250. If one more item whose cost is Rs 2,000 is added to the list what will be the new average (in Rs)?

Accepted Answer

Total cost of 4 items = 4 × 1250 = 5000. Adding the new item, total cost = 5000 + 2000 = 7000. New average = 7000 / 5 = 1400.

Question 7

In the following question, select the related letters from the given alternatives. JQXE : LSZG : : MTNL : ?

Accepted Answer

Each letter in the first term is shifted forward by 2 positions (+2) to get the second term. Applying +2 to MTNL gives OVPN.

Question 8

Who invented ﬁrst working laser?

Accepted Answer

Theodore H. Maiman invented the first working laser in 1960 at Hughes Research Laboratories, using a synthetic ruby crystal to produce a red laser beam.

Question 9

Which of the following pair/pairs is/are INCORRECT? I. Golden revolution - Fruits production II. Blue revolution - Increasing production of fertilizers III. Yellow revolution - For the production of eggs

Accepted Answer

Golden revolution relates to fruits/horticulture. Blue revolution is for fish production, not fertilizers (Grey). Yellow revolution is for oilseeds, not eggs (Silver). Thus, II and III are incorrect.

Question 10

To travel 432 km, an Express train takes 1 hour more than Duronto. If however, the speed of the Express train is increased by 50%, it takes 2 hours less than Duronto. What is the speed (in km/hr) of Duronto train?

Accepted Answer

Let Express speed be E. Time difference for Express is 3 hours. 432/E - 432/(1.5E) = 3, giving E = 48 km/hr. Express takes 9 hours, so Duronto takes 8 hours. Duronto speed = 432/8 = 54 km/hr.

Question 11

If Sec θ = 25/24 , then what is the value of Sin θ?

Accepted Answer

Sec θ = 25/24 means hypotenuse is 25 and adjacent is 24. Using the 7-24-25 Pythagorean triplet, the opposite side is 7. Thus, Sin θ = opposite/hypotenuse = 7/25.

Question 12

In science a push or pull of an object is called ________.

Accepted Answer

In physics, a force is defined as a push or pull upon an object resulting from its interaction with another object, causing it to change its state of motion.

Question 13

What does indifference curve represent? ?

Accepted Answer

An indifference curve represents various combinations of two goods that yield the same level of satisfaction or utility to the consumer.

Question 14

Which country is not a member of Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation (BIMSTEC)?

Accepted Answer

BIMSTEC comprises seven member states dependent on the Bay of Bengal: Bangladesh, Bhutan, India, Nepal, Sri Lanka, Myanmar, and Thailand. Pakistan is not a member of this regional organization.

Question 15

For what value of X, 211X will be a perfect square?

Accepted Answer

The number is in the 2100s. We know that 45² = 2025 and 46² = 2116. Thus, for 211X to be a perfect square, X must be 6.

Question 16

ΔXYZ is right angled at Y. If m∠Z = 60°, then Cosec X =

Accepted Answer

In ΔXYZ, ∠Y = 90° and ∠Z = 60°. So, ∠X = 180° - (90° + 60°) = 30°. Therefore, Cosec X = Cosec 30° = 2.

Question 17

What was United Kingdom's rank in 2016 Human Development Index published by the United Nations Development Programme?

Accepted Answer

In the 2016 Human Development Index (HDI) report published by the UNDP, the United Kingdom was ranked 16th globally, reflecting its high life expectancy, education, and per capita income.

Question 18

With which neighbouring country of India, Kaladan multi-model transport project has been undertaken?

Accepted Answer

The Kaladan Multi-Modal Transit Transport Project connects Kolkata seaport to Sittwe seaport in Myanmar, and then links to Mizoram via river and road, boosting regional connectivity.

Question 19

Which of the following Phylum are also called flatworms?

Accepted Answer

Platyhelminthes are acoelomate invertebrates characterized by their dorso-ventrally flattened bodies, which is why they are commonly known as flatworms. Examples include tapeworms.

Question 20

A student has to secure 35% marks to pass in a subject. If he gets 82 and fails by 23 marks. What is the maximum marks of the subject?

Accepted Answer

Passing marks = 82 + 23 = 105. Since 35% of the maximum marks equals 105, the maximum marks = (105 / 35) × 100 = 300.