If selling price is multiplied by 3, the profit becomes 5 times the original profit. Find the original profit percentage. MCQ with Answer and Explanation

Question

If selling price is multiplied by 3, the profit becomes 5 times the original profit. Find the original profit percentage.

A. 150%

B. 125%

C. 100%

D. 50%

Answer: Option C

Solution (By JKSSB Mock Tests)

Let original SP = S, CP = C. Profit P = S - C. New SP = 3S. New Profit = 3S - C. Given: 3S - C = 5(S - C). 3S - C = 5S - 5C. 4C = 2S. S = 2C. Profit = 2C - C = C. Profit % = (C/C) * 100 = 100%.

This question belongs to: Maths Profit And Loss

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A merchant gives a discount of 10% on the marked price. If he sells for Rs. 900, he gains 12.5%. If he sells at the marked price, what is his profit percentage?

A. 25%

B. 20%

C. 22.5%

D. 30%

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Correct Answer: Option A

Explanation:
Selling Price = 900. Gain = 12.5%. Cost Price = 900 / 1.125 = 800. Marked Price = 900 / 0.90 = 1000. If sold at 1000, Profit = 1000 - 800 = 200. Profit percentage = (200 / 800) * 100 = 25%.

This question belongs to: Maths Profit And Loss