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5. Raghav spends 80% of his income. Ifhis income increases by 12% and thesavings decrease by 10%, then whatwill be the percentage increase in hisexpenditure? |
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Answer» Given: RAGHAV spends 80% of his income. To FIND: If his income INCREASES by 12% and the savings decrease by 10%, then what will be the percentage increase in his expenditure? Solution: From given, we have Raghav spends 80% of his income. Let the income of Raghav be = Rs. 100 Therefore, his expenditure will be = Rs. 80 And his savings will be = Rs. 20 His income increases by 12% and the savings decrease by 10% 12% = 12/100 = 0.12 Therefore, income = Rs. 112 Savings = 20 × 90/100 = Rs. 18 Expenditure = 112 - 18 = 94 Thus the increment in his expenditure = 94 - 80 = Rs. 14 The percentage increment in expenditure = 14/80 × 100 = Rs. 20 |
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