What is 20% of 50% of 300? MCQ with Answer and Explanation

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What is 20% of 50% of 300?

A. 30

B. 40

C. 35

D. 25

Answer: Option A

Solution (By JKSSB Mock Tests)

0.2 × 0.5 × 300 = 30.

This question belongs to: Maths Percentage

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Question #1

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A shopkeeper sells an article at 20% profit. Had he bought it at 20% less and sold it for Rs. 10 less, he would have gained 25%. Cost price is:

A. Rs. 40

B. Rs. 45

C. Rs. 50

D. Rs. 55

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Correct Answer: Option C

Explanation:
CP=x, SP=1.2x. New CP=0.8x, new SP=1.2x-10 = 1.25×0.8x = x → 1.2x-10=x → 0.2x=10 → x=50.

This question belongs to: Maths Percentage

Question #2

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A man spends 75% of his income. His income is increased by 20% and he increased his expenditure by 10%. What is the percentage increase in his savings?

A. 40%

B. 30%

C. 50%

D. 25%

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Correct Answer: Option C

Explanation:
Let original income = 100. Exp = 75. Savings = 25. New income = 120. New Exp = 75 + (10% of 75) = 82.5. New Savings = 120 - 82.5 = 37.5. Increase = 12.5. % Increase = (12.5 / 25) * 100 = 50%.

This question belongs to: Maths Percentage