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After getting two successive discounts Shalini got a shirt at Rs. 136 whose marked price is Rs. 200. If the second discount is 15% find the first discount.

12.5%

15%

25%

20%

Explanation:

Let the first discount be x%.
Then, 85% of (100 – x)% of 200 = 136
or, 85/100 x (100 – x)/100 × 200 = 136
or, 8500 – 85x = 136 × 50 = 6800
or, 85x = 1700
∴ x = 20%

By: Amit Kumar

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