SSC CGL Undated PYQs

Question 1

In April 2016, amid rising tension over North Korea, which country launched its ﬁrst domestically built aircraft carrier?

Accepted Answer

In April 2017, China launched its first domestically built aircraft carrier, the Type 001A, later named Shandong. This event marked a significant milestone in the modernization of its navy and its growing military presence.

Question 2

China does not share its border with which Indian state?

Accepted Answer

China shares its borders with Ladakh, Himachal Pradesh, Uttarakhand, Sikkim, and Arunachal Pradesh. Bihar shares its international border only with Nepal, not China, making it the correct answer.

Question 3

A trader had 1200 kgs of rice. He sold a part of it at 5% proﬁt and the rest at 11% proﬁt, so that he made a total proﬁt of 7%. How much (in kg) wheat did he sell at 5% proﬁt?

Accepted Answer

Using alligation, the ratio of quantities sold at 5% and 11% is (11 - 7) : (7 - 5) = 4 : 2 = 2 : 1. Quantity at 5% = (2/3) × 1200 = 800 kg.

Question 4

Three bottles of equal capacity containing mixture of milk and water in ratio 2 : 5, 3 : 4 and 4 : 5 respectively. These three bottles are emptied into a large bottle. What will be the ratio of milk and water respectively in the large bottle?

Accepted Answer

Equate the capacities using the LCM of the sum of ratios (7, 7, 9), which is 63. Total milk = 18 + 27 + 28 = 73. Total water = 45 + 36 + 35 = 116. Ratio is 73:116.

Question 5

Select the related word from the given alternatives. Swim : Water :: Fly : ?

Accepted Answer

Just as swimming is an action performed in the water, flying is an action performed in the air. The relationship is 'Action : Medium'.

Question 6

The sum of a non-zero number and twenty times its reciprocal is 9. What is the number?

Accepted Answer

Let the number be x. The equation is x + 20/x = 9, which simplifies to x^2 - 9x + 20 = 0. The roots are 4 and 5. Option 4 matches.

Question 7

The study of individual markets of demand and supply in which the 'players', or the decision makers, were also individuals (buyers or sellers, even companies) who were seen as trying to maximize their profits (as producers or sellers) and their personal satisfaction or welfare levels (as consumers) is called?

Accepted Answer

Microeconomics focuses on the behavior of individual consumers and firms in making decisions regarding the allocation of scarce resources, aiming to maximize personal satisfaction or profits.

Question 8

Which National Park in Nepal is a continuation of India's Valmiki National Park?

Accepted Answer

Chitwan National Park in Nepal is contiguous with India's Valmiki National Park in Bihar, forming a major transboundary conservation area for tigers and rhinos.

Question 9

A can do a work in 12 days and B in 24 days. If they work on it together for 4 days, then what fraction of work is left?

Accepted Answer

Total work = LCM(12, 24) = 24 units. A's efficiency = 2, B's = 1. Together they do 3 units/day. In 4 days, they complete 12 units. Fraction left = (24 - 12)/24 = 1/2.

Question 10

Brownish ﬁlm formed on iron when left in open is called?

Accepted Answer

When iron is exposed to oxygen and moisture in the air, it undergoes oxidation to form iron oxide, commonly known as rust, which appears as a brownish film.

Question 11

According to the categories of land mentioned in the Chola inscriptions ___________ was known as the land of non-Brahmana peasant proprietors?

Accepted Answer

In Chola inscriptions, Vellanvagai was land for non-Brahmana peasant proprietors. Brahmadeya was gifted to Brahmanas, Shalabhoga for school maintenance, and Devadana was gifted to temples.

Question 12

Who among the following was awarded with Dhronacharya Award 2016 in the field of 'Swimming (Lifetime)'?

Accepted Answer

Shri S. Pradeep Kumar received the Dronacharya Award in 2016 for his lifetime contribution to swimming. The award recognizes outstanding coaches in sports.

Question 13

What is the difference (in Rs) between the compound interests on Rs. 4000 for 1 year at 12% per annum compounded yearly and half-yearly?

Accepted Answer

For half-yearly compounding, the rate is 6% for 2 cycles. Effective rate = 6+6+(36/100) = 12.36%. Yearly rate is 12%. The difference is 0.36% of 4000, which equals 14.4.

Question 14

Edward Jenner discovered vaccine for which of the following disease?

Accepted Answer

Edward Jenner discovered the smallpox vaccine in 1796, which was the world's first successful vaccine. He used cowpox material to create immunity against smallpox.

Question 15

Select the related word from the given alternatives. Cow : Milk :: Bees : ?

Accepted Answer

Just as a cow produces milk for human consumption, bees produce honey. The relationship is based on the organism and the primary product it yields.

Question 16

Which of the following three R's are regarded as environment friendly?

Accepted Answer

The 3 R's of waste management are Reduce (minimize waste), Reuse (use items multiple times), and Recycle (convert waste into new materials) to protect the environment.

Question 17

'Udey Desh ka Aam Nagrik' (UDAN) scheme for regional air connectivity will provide travel to tier 2 and tier 3 cities at the rate of Rs _____ per hour.

Accepted Answer

Under the UDAN scheme launched by the Ministry of Civil Aviation, airfares are capped at Rs 2500 per hour of flight for regional routes connecting tier 2 and tier 3 cities.

Question 18

If "α" denotes "subtracted from", "β" denotes "multiplied by", "θ" denotes "added to" and "δ" denotes "divided by", then 10 θ 8 β 4 δ 8 α 9 = ?

Accepted Answer

Replace symbols with mathematical operators: 10 + 8 × 4 ÷ 8 - 9. Using BODMAS, first divide (4÷8=0.5), then multiply (8×0.5=4), add (10+4=14), and subtract (14-9=5).

Question 19

What is the third proportional to 10 and 25?

Accepted Answer

The third proportional c to a and b is calculated using the formula c = b² / a. Here, c = (25 × 25) / 10 = 625 / 10 = 62.5.

Question 20

Around how much percent of earth's surface is covered with water?

Accepted Answer

About 71% of the Earth's surface is water-covered, mostly by oceans. Therefore, the 70-80% range is the correct estimate for the total water coverage on our planet.