By selling 50 meters of cloth. I gain the selling price of 15 meters. Find the gain percent?
Correct answer: D. 42 6/7%
- A. 35%
- B. 30%
- C. 40%
- D. 42 6/7%
Explanation
Let the selling price per metre be Rs.s. The gain on 50 metres equals the selling price of 15 metres, so total cost of 50 metres is the selling price of 50 - 15 = 35 metres, or Rs.35s. The gain percentage is Rs.15s/Rs.35s x 100 = 42 6/7%. Students often choose 30% by comparing the 15 metres with 50 metres without converting the gain into a percentage of cost price.
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Profit and loss compare the cost price and selling price of an item, using profit or loss percentages based on the cost price unless stated otherwise. Questions include marked price, discount, successive discounts, commission, and finding an unknown price, with care needed to distinguish discount from loss.
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