Question
The ratio of monthly savings to monthly expenditure of Nisha is 5:8 respectively. If her savings go up by 40% while expenditure drops by 25%, then her new monthly income is 19500. Find Nisha’s original monthly expenditure.
Solution
ATQ, Let original monthly savings and monthly expenditure of Nisha is Rs. 5x and Rs. 8x respectively. According to question; 1.4 × 5x + 0.75 × 8x = 19500 7x + 6x = 19500 13x = 19500 So, x = 1500 Desired answer = 8 × 1500 = Rs. 12000
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