A's salary is 50% of B's salary which is 40% of C's salary. What percent of C's salary is A's salary? MCQ with Answer and Explanation

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A's salary is 50% of B's salary which is 40% of C's salary. What percent of C's salary is A's salary?

A. 25%

B. 20%

C. 15%

D. 30%

Answer: Option B

Solution (By JKSSB Mock Tests)

A = 0.5B, B = 0.4C → A = 0.5×0.4C = 0.2C = 20% of C.

This question belongs to: Maths Percentage

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Question #1

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In 60 L of milk-water mixture, water is 10%. How much water must be added to make water 25%?

A. 10 L

B. 6 L

C. 8 L

D. 12 L

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Correct Answer: Option D

Explanation:
Water = 6 L, milk = 54 L. For water 25%, milk 75%, total = 54/0.75 = 72 L, add 12 L.

This question belongs to: Maths Percentage

Question #2

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40% of a number exceeds 25% of the same number by 30. What is 75% of the number?

A. 160

B. 150

C. 180

D. 170

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Correct Answer: Option B

Explanation:
0.4x - 0.25x = 0.15x = 30 → x = 200. 75% of 200 = 150.

This question belongs to: Maths Percentage

Question #3

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A number increased by 10% gives 55. The number is:

A. 48

B. 45

C. 52

D. 50

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Correct Answer: Option D

Explanation:
1.1x = 55 → x = 50.

This question belongs to: Maths Percentage

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