What is the single equivalent discount for two successive discounts of 10% and 10%? MCQ with Answer and Explanation

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What is the single equivalent discount for two successive discounts of 10% and 10%?

A. 19%

B. 21%

C. 18%

D. 20%

Answer: Option A

Solution (By JKSSB Mock Tests)

Equivalent discount = a + b - (ab / 100) = 10 + 10 - (100 / 100) = 19%.

This question belongs to: Maths Profit And Loss

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Question #1

If the selling price is Rs. 550 and the profit is 10%, find the cost price.

A. Rs. 500

B. Rs. 505

C. Rs. 510

D. Rs. 495

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Correct Answer: Option A

Explanation:
SP = 1.1 CP => CP = 550 / 1.1 = 500.

This question belongs to: Maths Profit And Loss

Question #2

A reduction of 20% in the price of sugar enables a purchaser to obtain 4 kg more for Rs. 160. What is the original price per kg?

A. Rs. 15

B. Rs. 8

C. Rs. 12

D. Rs. 10

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Correct Answer: Option D

Explanation:
20% of 160 = 32. This Rs. 32 buys 4 kg sugar. Reduced price = 32 / 4 = Rs. 8/kg. Let original price be x. 0.8x = 8. x = Rs. 10/kg.

This question belongs to: Maths Profit And Loss

Question #3

An article is sold at Rs. 540, earning a profit of 8%. What is the cost price?

A. Rs. 500

B. Rs. 510

C. Rs. 480

D. Rs. 520

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Correct Answer: Option A

Explanation:
CP = 540 / 1.08 = 500.

This question belongs to: Maths Profit And Loss

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