SSC CGL Undated PYQs

Question 1

Select the odd letters from the given alternatives.

Accepted Answer

In all options except QRS, the letters are arranged in reverse alphabetical order (decreasing by 1). QRS is in forward alphabetical order (increasing by 1), making it the odd one.

Question 2

If x/3 - [5(7x/5 - 4/3)]/2 = -x/6, then what is the value of x?

Accepted Answer

Multiply the entire equation by 6 to clear denominators. We get 2x - 3(7x - 20/3) = -x. Simplifying gives -19x + 20 = -x, so 18x = 20, which means x = 10/9.

Question 3

What is the slope of the line perpendicular to the line passing through the points (-2, 3) and (2, 0)?

Accepted Answer

First, find the slope of the given line: m = (0 - 3) / (2 - (-2)) = -3/4. The perpendicular slope is the negative reciprocal, which is 4/3.

Question 4

Select the related word from the given alternatives. Cow : Calf :: Hen : ?

Accepted Answer

A calf is the young one of a cow. Following the same logic, a chick is the young one of a hen.

Question 5

Which of the following is the correct order of percentage increase in loan amount disbursed by the given banks from 2010 to 2014?

Accepted Answer

Calculate the percentage increase for each bank using the formula ((Value in 2014 - Value in 2010) / Value in 2010) * 100, then arrange them in descending order to find the correct sequence.

Question 6

A is 1.5 times efficient than B therefore takes 8 days less than B to complete a work. If A and B work on alternate days and A works on first day, then in how many days the work will  be completed?

Accepted Answer

Efficiency ratio A:B is 3:2, so time ratio is 2:3. Difference is 1 unit = 8 days. A takes 16 days, B 24. Total work=48. 2-day cycle=5 units. 9 cycles (18 days)=45 units. A finishes remaining 3 units on day 19.

Question 7

In Microsoft Excel, the ______() function is used to count the number of cells within a range that meet the given criteria.

Accepted Answer

The COUNTIF function in Excel counts the number of cells in a range that match a specific condition or criteria. COUNT only counts cells containing numbers.

Question 8

In the following question, select the related word pair from the given alternatives. Ammeter : Current : : ? : ?

Accepted Answer

An ammeter is an instrument used to measure electric current. Similarly, an anemometer is an instrument specifically used to measure the speed and direction of wind.

Question 9

If total time taken in engine and tyres is 127.5 hours, then what is the difference (in hours) in time taken by frame and glass respectively?

Accepted Answer

Using the provided chart data, find the ratio of the difference (Frame - Glass) to the sum (Engine + Tyres). Multiply this ratio by 127.5 to get exactly 35 hours.

Question 10

Marble comes under which category of rocks?

Accepted Answer

Marble is a metamorphic rock formed when limestone is subjected to high heat and pressure over time, causing its minerals to recrystallize.

Question 11

___________ gases absorb long wave (infrared) radiation from the earth and emit it again towards the earth.

Accepted Answer

Greenhouse gases (like CO2, methane, and water vapor) absorb infrared radiation emitted by the Earth and re-radiate it back, causing the greenhouse effect and warming the planet.

Question 12

Who discovered the colour photography?

Accepted Answer

James Clerk Maxwell discovered color photography in 1861. He demonstrated the first durable color photograph by projecting three black-and-white images through red, green, and blue filters.

Question 13

Which of the following is correct about proﬁt after tax for year Y2, Y6 and Y8?

Accepted Answer

By observing the given data chart for profit after tax, the value for Y8 is the highest, followed by Y6, and Y2 is the lowest. Thus, Y8 > Y6 > Y2.

Question 14

Dhruv's birthday is on Sunday 28th May. On what day of the week will be Sahil's Birthday in the same year if Sahil was born on 19th October?

Accepted Answer

Days from May 28 to Oct 19: 3+30+31+31+30+19 = 144 days. Dividing 144 by 7 gives a remainder of 4 odd days. Sunday + 4 days = Thursday.

Question 15

A bus starts running with the initial speed of 21 km/hr and its speed increases every hour by 3 km/hr. How many hours will it take to cover a distance of 252 km?

Accepted Answer

The speeds form an AP: 21, 24, 27... The total distance is the sum of the AP. Using S = n/2[2a + (n-1)d], 252 = n/2[42 + (n-1)3]. Solving gives n = 8 hours.

Question 16

Which country will be hosting 2018 Men's Hockey World Cup?

Accepted Answer

The 2018 Men's Hockey World Cup was hosted by India. The tournament took place at the Kalinga Stadium in Bhubaneswar, Odisha, where Belgium won the title.

Question 17

In which of the following class can we put Adrenaline?

Accepted Answer

Adrenaline, also known as epinephrine, is a hormone secreted by the adrenal glands. It prepares the body for the 'fight or flight' response during high stress.

Question 18

If 30 taxis quit company B and joined company D then D will have how many more taxis than C?

Accepted Answer

Add 30 to company D's initial taxi count (from the given chart), then subtract company C's taxi count. The difference will be exactly 70.

Question 19

The change in the optimal quantity of a good when its price changes and the consumer’s income is adjusted so that she can just buy the bundle that she was buying before the price change is called?

Accepted Answer

This describes the substitution effect. It isolates the effect of a price change on demand by adjusting income to keep the consumer's original purchasing power constant.

Question 20

What is formed when Magnesium is burnt?

Accepted Answer

When magnesium burns in the air, it reacts with oxygen to form magnesium oxide, which appears as a white powdery ash.