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ATQ, Let, the initial salary of the person be Rs. '100x'. Initial expenditure of the person = 0.50 X 100x = Rs. '50x' Initial savings of the person = 100x - 50x = Rs. '50x' New salary of the person = 1.30 X 100x = Rs. '130x' Savings of the person remains the same. So, 50x + 9000 = 130x - 50x Or, 80x - 50x = 9000 Or, 30x = 9000 So, x = 300 So, the initial salary of the person = 100x = 100 X 300 = Rs.30,000
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