SSC CGL Undated PYQs

Question 1

The sum of a fraction and 7 times its reciprocal is 11/2. What is the fraction?

Accepted Answer

Let the fraction be x. The equation is x + 7/x = 11/2. Multiplying by 2x gives 2x^2 - 11x + 14 = 0. Solving this quadratic yields x = 7/2 or 2.

Question 2

_____________ scheme by the Central Government will strengthen the bond between all the states, regions, and districts of India.

Accepted Answer

'Ek Bharat Shrestha Bharat' was launched to enhance interaction and promote mutual understanding between people of different states and UTs, strengthening the cultural unity of India.

Question 3

If time taken in seats is 192 hours, then what is the time taken (in hours) in glass?

Accepted Answer

Using the provided chart data, determine the ratio of glass to seats. Multiply the given time for seats (192 hours) by this ratio to calculate the correct time of 256 hours.

Question 4

Improve the bracketed part of the sentence. If you talk to her nicely, she will probably (allow you) her notes.

Accepted Answer

The verb 'let' is followed by a bare infinitive (verb without 'to'). 'Allow' is followed by 'to' + infinitive. Thus, 'let you have' is correct.

Question 5

If inflation is measured as increase in price index and the price index was 200 in the beginning of 2015 in country D then what is the index at the end of 2016? 9/7/2017 Staff Selection Commision http://thepracticetest.in/cs_cglet1_17/response_questions.php?t_id=MTgwODIwMTc=&appid=1368062d74107fc05177712c90c3885c# 18/22

Accepted Answer

Using the provided data chart, apply the successive inflation rates for 2015 and 2016 to the initial index of 200. Calculating 200 × (1 + r1/100) × (1 + r2/100) gives 214.2.

Question 6

If a + b = 3 and ab = -4, then what is the value of a3 + b3?

Accepted Answer

Use the algebraic identity a³ + b³ = (a+b)³ - 3ab(a+b). Substituting the given values: 3³ - 3(-4)(3) = 27 + 36 = 63.

Question 7

What is the chemical formula for Sodium Chloride (Salt)?

Accepted Answer

Sodium (Na) has a +1 charge and Chlorine (Cl) has a -1 charge. They combine in a 1:1 ratio to form the neutral ionic compound NaCl, commonly known as table salt.

Question 8

The perimeter of an isosceles triangle is 32 cm and each of the equal sides is 5/6 times of the base. What is the area (in cm2) of the triangle ?

Accepted Answer

Let base be 6x. Equal sides are 5x each. Perimeter = 16x = 32, so x=2. Sides are 10, 10, 12. Height = √(10² - 6²) = 8. Area = 1/2 × 12 × 8 = 48.

Question 9

A milkman buys milk at Rs 25 per litre and adds 1/4 of water to it and sells the mixture at Rs 26 per litre. His gain (in %) is?

Accepted Answer

Assume he buys 4L milk for Rs 100. Adding 1/4 water makes it 5L. Selling 5L at Rs 26/L yields Rs 130. Profit is Rs 30 on Rs 100, which is 30%.

Question 10

The company reported a loss in which year? 9/7/2017 Staff Selection Commision

Accepted Answer

Based on the provided data chart, the expenditure exceeded the revenue only in the year 2013, resulting in a net loss for the company.

Question 11

Select the related number from the given alternatives. 2.25 : 13/4 :: 3.75 : ? 2.25 : 13/4 :: 3.75 : ?

Accepted Answer

Add 1 to the first number and convert it to a fraction. 2.25 + 1 = 3.25 = 13/4. Similarly, 3.75 + 1 = 4.75 = 19/4.

Question 12

Jama Masjid of Delhi was built by?

Accepted Answer

Mughal Emperor Shah Jahan built the Jama Masjid in Delhi between 1650 and 1656. It is one of the largest mosques in India, constructed using red sandstone and white marble.

Question 13

Who is known as the 'Father of Indian Unrest'?

Accepted Answer

British journalist Valentine Chirol called Bal Gangadhar Tilak the 'Father of Indian Unrest' in his book due to Tilak's aggressive nationalist ideas and prominent role in the Swadeshi movement.

Question 14

If a boat goes a certain distance at 30 km/hr and comes back the same distance at 60 km/hr. What is the average speed (in km/hr) for the total journey?

Accepted Answer

For equal distances, average speed is calculated as 2xy / (x + y). Here, x = 30 and y = 60. Average speed = (2 × 30 × 60) / (30 + 60) = 3600 / 90 = 40 km/hr.

Question 15

Who invented the vacuum pump?

Accepted Answer

Otto von Guericke, a German physicist, invented the first vacuum pump in 1654. He famously demonstrated its power using the Magdeburg hemispheres, showing the immense force of atmospheric pressure.

Question 16

If the total expenses of the company are Rs 50 crores, the total expenditure (in Rs crores) on Transport and Electricity is:

Accepted Answer

Based on the given data (usually a pie chart), Transport and Electricity combined account for 40% of total expenses. 40% of 50 crores = (40/100) × 50 = 20 crores.

Question 17

There are total _________ parliamentary seats (Rajya Sabha constituency) in Odisha.

Accepted Answer

Odisha has a total of 10 Rajya Sabha seats and 21 Lok Sabha seats. The allocation is based on the population of the state.

Question 18

In April 2017, Chief Minister Amarinder Singh banned inclusion of names of Ministers and MLA's on Plaques and Foundation Stones in which state?

Accepted Answer

Captain Amarinder Singh was the Chief Minister of Punjab in 2017. He banned the names of ministers and MLAs on foundation stones to end the VIP culture in the state.

Question 19

If "+" denotes "divided by", "x" denotes "added to", "÷" denotes "subtracted from" and "–" denotes "multiplied by", then 54 + 162 – 18 x 12 ÷ 6 = ? 54 + 162 – 18 x 12 ÷ 6 = ?

Accepted Answer

Substitute the signs to get: 54 ÷ 162 × 18 + 12 - 6. Using BODMAS, first divide (54/162 = 1/3), then multiply (1/3 × 18 = 6), then add and subtract: 6 + 12 - 6 = 12.

Question 20

A change in which a substance undergoes a change in its physical properties is called _____________.

Accepted Answer

A physical change occurs when a substance's physical properties, such as shape, size, or state, alter without forming any new chemical substance. Examples include melting ice or tearing paper.