A shopkeeper sells a radio for Rs. 660, gaining 10%. Find the cost price. MCQ with Answer and Explanation

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A shopkeeper sells a radio for Rs. 660, gaining 10%. Find the cost price.

A. Rs. 640

B. Rs. 620

C. Rs. 580

D. Rs. 600

Answer: Option D

Solution (By JKSSB Mock Tests)

CP = 660/1.1 = 600.

This question belongs to: Maths Profit And Loss

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Question #1

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A person sells a book for Rs. 150, losing 25%. Find the cost price.

A. Rs. 180

B. Rs. 190

C. Rs. 210

D. Rs. 200

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Correct Answer: Option D

Explanation:
SP = 75% of CP => CP = 150 / 0.75 = 200.

This question belongs to: Maths Profit And Loss

Question #2

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The profit earned by selling an article for Rs. 900 is double the loss incurred when the same article is sold for Rs. 450. At what price should it be sold to make a 25% profit?

A. Rs. 900

B. Rs. 750

C. Rs. 800

D. Rs. 600

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Correct Answer: Option B

Explanation:
Let the cost price be CP. Profit = 900 - CP. Loss = CP - 450. Given: 900 - CP = 2 * (CP - 450). 900 - CP = 2CP - 900. 3CP = 1800, so CP = 600. For a 25% profit, Selling price = 1.25 * 600 = Rs. 750.

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Question #3

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A person buys pencils at 3 for Rs. 2 and sells them at 2 for Rs. 3. Find the profit percentage.

A. 115%

B. 120%

C. 125%

D. 100%

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Correct Answer: Option C

Explanation:
Cost Price of 1 pencil = 2 / 3. Selling Price of 1 pencil = 3 / 2. Profit = (3 / 2) - (2 / 3) = (9 - 4) / 6 = 5 / 6. Profit percentage = ((5 / 6) / (2 / 3)) * 100 = (5 / 4) * 100 = 125%.

This question belongs to: Maths Profit And Loss

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