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: MCQ with Answer and Explanation

Question

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. 50

B. Rs. 40

C. Rs. 55

D. Rs. 45

Answer: Option A

Solution (By JKSSB Mock Tests)

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

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Question #1

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A man's salary was reduced by 50% and then increased by 50%. Find the net change in his salary.

A. 40% decrease

B. 30% decrease

C. 25% decrease

D. 15% decrease

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Correct Answer: Option C

Explanation:
0.5 × 1.5 = 0.75, 25% decrease.

This question belongs to: Maths Percentage

Question #2

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If speed decreases by 20%, by what percentage will the time required to cover the same distance increase?

A. 25%

B. 30%

C. 33.33%

D. 20%

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Correct Answer: Option A

Explanation:
Time increase = (20 / 80) * 100 = 25%.

This question belongs to: Maths Percentage

Question #3

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Number 50% more than another. Smaller is what % less than larger?

A. 30%

B. 35%

C. 33.33%

D. 25%

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Correct Answer: Option C

Explanation:
Small=100, large=150, less % = (50/150)×100 = 33.33%.

This question belongs to: Maths Percentage

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