Question
The ratio of monthly savings to monthly expenditure of
Arjun is 6:5 respectively. If his savings increase by 25% while expenditure decreases by 20%, his new monthly income becomes 13800. Find Arjun’s original monthly expenditure.Solution
ATQ, Let original monthly savings and monthly expenditure of Arjun is Rs. 6x and Rs. 5x respectively. According to question; 1.25 × 6x + 0.8 × 5x = 13800 7.5x + 4x = 13800 11.5x = 13800 So, x = 1200 Desired answer = 5 × 1200 = Rs. 6000
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