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SSC CGL 2024 MCQ Practice Set
Practice test with 20 highly selected questions based on previous year papers.
🔓 5 Free Questions | 🔒 15 Premium Questions
Q1.
A can complete a work in 12 days and B can complete the same work in 18 days. They work together for 4 days, and then A leaves. In how many days will B complete the remaining work?
Correct Answer: B
Total work = LCM of 12 and 18 = 36 units. Efficiency of A = 3 units/day, and B = 2 units/day. Combined efficiency = 5 units/day. In 4 days, they complete 5 * 4 = 20 units. Remaining work = 16 units. B completes it in 16 / 2 = 8 days.
Q2.
A train 150 meters long passes a telegraph post in 12 seconds. How long will it take to cross a bridge of length 250 meters?
Correct Answer: C
Speed of the train = 150 / 12 = 12.5 m/s. To cross the bridge, the total distance to cover is 150 + 250 = 400 meters. Time taken = 400 / 12.5 = 32 seconds.
Q3.
If the price of petrol increases by 25%, by what percentage should a consumer reduce their consumption so that the expenditure remains unchanged?
Correct Answer: A
To keep expenditure constant, the reduction percentage is [R / (100 + R)] * 100, where R is the rate of increase. Thus, [25 / 125] * 100 = 20%.
Q4.
An article is sold at a loss of 10%. If it had been sold for Rs. 90 more, there would have been a gain of 5%. What is the cost price of the article?
Correct Answer: B
The difference between a 10% loss and a 5% gain is 15%. According to the question, 15% of Cost Price (CP) = Rs. 90. Therefore, CP = (90 / 15) * 100 = Rs. 600.
Q5.
In a library, the ratio of history books to science books is 4:7. If there are 320 history books, what is the total number of history and science books together in the library?
Correct Answer: C
Let history books be 4x and science books be 7x. Given 4x = 320, so x = 80. Total books = 11x = 11 * 80 = 880.
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