A's salary 15% less than B's. By what % must A's salary be raised to equal B's? MCQ with Answer and Explanation

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A's salary 15% less than B's. By what % must A's salary be raised to equal B's?

A. 16.67%

B. 15%

C. 18%

D. 17.65%

Answer: Option D

Solution (By JKSSB Mock Tests)

A=85, B=100. Increase needed = (15/85)×100 ≈ 17.65%.

This question belongs to: Maths Percentage

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Question #1

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If the length of a rectangle is increased by 25%, by what percentage must the width be decreased to keep the area unchanged?

A. 15%

B. 20%

C. 25%

D. 33.33%

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Correct Answer: Option B

Explanation:
Required decrease = (25 / 125) * 100 = 20%.

This question belongs to: Maths Percentage

Question #2

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Population of a city is 1,20,000, increasing at 10% per year. After 1 year, population is:

A. 1,35,000

B. 1,30,000

C. 1,32,000

D. 1,28,000

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Correct Answer: Option C

Explanation:
1,20,000 × 1.1 = 1,32,000.

This question belongs to: Maths Percentage

Question #3

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A can do a work in 15 days and B in 20 days. They work together for 6 days, then A leaves. In how many more days will B finish the remaining work?

A. 6 days

B. 8 days

C. 4 days

D. 5 days

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Correct Answer: Option A

Explanation:
Work done in 6 days = 6×(1/15+1/20)=6×(7/60)=7/10. Remaining=3/10. B's rate=1/20, time = (3/10)×20=6 days.

This question belongs to: Maths Percentage

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