Question
A boy lost his 25% of his money. After spending 30% of
the remainder, he has Rs 1260 left. What money does he had initially?Solution
Let A be the pocket money, A ( 1 + x/100) ( 1 + y/100) = 1260 (Given) Here x = - 25, y = - 30 Therefore, A( 1 - 25/100) ( 1 - 30/100) = 1260 A = (1260 x 100 x 100) / (75 x 70) = Rs 2400
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