Question
A person spends 18% of his income on investments and 22%
of the remaining income on household expenses. If the amount spent on investments is Rs. 9,000, then find the amount spent on household expenses.Solution
Let the income of the person be Rs. x.
Amount spent on investments = 0.18x = Rs. 9,000
Total income = 9,000 ÷ 0.18 = Rs. 50,000
Amount spent on household expenses = 0.22 × (0.82x) = 0.1804x = 50,000 × 0.1804 = Rs. 9,020
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