Raghav spends 80% of his income. If his income increases by 12% and the savings decrease by 10%, then what will be the percentage increase in his expenditure?
Let the income of Raghav be Rs.100.
Expenditure = 80
Saving = Rs.20
Income increases by 12% and the savings decrease by 10%,
So, income = 112,
Saving = 20 $$\times \frac{90}{100} = 18$$
Expenditure = 112 - 18 = 94
Increment in his expenditure = 94 - 80 = 14
Percentage increment in expenditure = $$\frac{14}{80} \times 100 = 20$$
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