The marked price of a laptop is ₹ 24,000. If after allowing two successive discounts of x% and 10% on the marked price, it is sold for ₹ 18,360. Find the value of x?

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The marked price of a laptop is ₹ 24,000. If after allowing two successive discounts of x% and 10% on the marked price, it is sold for ₹ 18,360. Find the value of x?

A12

B20

C10

D15

Answer:

D. 15

Read Explanation:

18,360 = 24,000 × (100 –x)/100 × 90/100 ⇒ 18,360 = 24 × (100 – x) × 9 ⇒ 2,040 = 24 × (100 – x) ⇒ 85 = (100 – x) ⇒ x = (100 – 85) ⇒ x = 15

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