Question
A person spends 20% of his monthly salary on Activity
A. Out of the remaining amount, he spends 70% on Activity B and saves the rest. The difference between the amount spent on Activity A and the amount saved is ₹1600. What is his monthly salary?Solution
ATQ, Let salary = S Activity A = 20% of S = 0.2S Remaining = 0.8S Activity B = 70% of 0.8S = 0.56S Savings = S − (Activity A + Activity B) = S − (0.2S + 0.56S) = S − 0.76S = 0.24S Difference between savings and Activity A: 0.24S − 0.2S = 0.04S Given: 0.04S = 1600 ⇒ S = 1600 ÷ 0.04 = 40,000
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