In a certain store the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant approximately what percentage of the selling price is the profit?
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Solution
Let C.P.= Rs. 100. Then Profit = Rs. 320 S.P. = Rs. 420 New C.P. = 125% of Rs. 100 = Rs. 125 New S.P. = Rs. 420 Profit = Rs. (420 - 125) = Rs. 295 Required percentage = (295/420) x 100 % = 1475/21 % = 70% (approximately)