A man sells an article at 10% profit. If bought at 10% less and sold for Rs. 10 more, gain 25%. CP: MCQ with Answer and Explanation

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A man sells an article at 10% profit. If bought at 10% less and sold for Rs. 10 more, gain 25%. CP:

A. Rs. 400

B. Rs. 450

C. Rs. 300

D. Rs. 350

Answer: Option A

Solution (By JKSSB Mock Tests)

CP=x, SP=1.1x. New CP=0.9x, new SP=1.1x+10, new SP=1.25×0.9x=1.125x. So 1.1x+10=1.125x → 0.025x=10 → x=400.

This question belongs to: Maths Percentage

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Question #1

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If the price of sugar increases by 25%, by what percentage must consumption be reduced so that expenditure remains the same?

A. 15%

B. 25%

C. 20%

D. 30%

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Correct Answer: Option C

Explanation:
Required reduction = (R / (100 + R)) * 100. (25 / 125) * 100 = 20%.

This question belongs to: Maths Percentage

Question #2

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In a class of 40, 30% are girls. Number of boys is:

A. 30

B. 28

C. 32

D. 26

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Correct Answer: Option B

Explanation:
70% of 40 = 28 boys.

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Question #3

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A number divided by 4, quotient increased by 25% then decreased by 20% gives 150. Number:

A. 540

B. 640

C. 560

D. 600

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Correct Answer: Option D

Explanation:
(N/4)×1.25×0.8 = (N/4)×1 = 150 → N/4=150 → N=600.

This question belongs to: Maths Percentage

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