A trader sells a carpet for Rs. 1,380 and makes a profit of 15%. What was the cost price of the carpet?
Correct answer B. Rs. 1,200
Explanation
Cost price = SP × 100/(100 + gain%) = 1,380 × 100/115 = Rs. 1,200. Taking 15% off the selling price would wrongly use the selling price as the base.
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