20% of 500 is: MCQ with Answer and Explanation

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20% of 500 is:

A. 110

B. 80

C. 100

D. 90

Answer: Option C

Solution (By JKSSB Mock Tests)

0.2 × 500 = 100.

This question belongs to: Maths Percentage

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Question #1

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A person's salary increased from 4000 to 5000. What is the percentage increase?

A. 20%

B. 25%

C. 35%

D. 30%

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Correct Answer: Option B

Explanation:
Increase = 5000 - 4000 = 1000. Percentage increase = (1000 / 4000) * 100 = 25%.

This question belongs to: Maths Percentage

Question #2

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Car value depreciates 15% first year, 13.5% second. Bought for 5,00,000, value after 2 years:

A. 3,75,000

B. 3,67,625

C. 3,62,500

D. 3,70,000

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Correct Answer: Option B

Explanation:
5,00,000×0.85×0.865 = 3,67,625.

This question belongs to: Maths Percentage

Question #3

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A student scored 20% marks and failed by 36 marks. Another student scored 30% marks and got 24 marks more than the passing marks. Find the passing marks.

A. 160

B. 180

C. 140

D. 156

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Correct Answer: Option D

Explanation:
0.2M + 36 = 0.3M - 24 → 0.1M = 60 → M = 600. Passing marks = 0.2×600+36 = 156.

This question belongs to: Maths Percentage

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