Question
A store owner sold a product at a profit of 22%. Had he
sold it at a profit of 15%, he would have gained Rs.140 less. Determine the cost price.Solution
ATQ, Let the CP be Rs.x. x * 122/100 – x * 115/100 = 140 61x/50 – 23x/20 = 140 (61x2 – 23x5) /100 = 140 (122x – 115x) /100 = 140 7x/100 = 140 7x = 14000 x = 2000 The cost price = x = Rs.2000
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