A man spends 80% of his income. If his income is increased by 40% and expenditure is increased by 10%, by what percentage is savings increased
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Actual Answer is 160%.
What I have done: I took his income as 100. According to the question, his income is increased by 40 so, 140.
According to the question, his expenditure is 80, then his expenditure increased by 10% so 90%.
According to the question, the man's saving is 20 because 100−80=20, After his expenditure increased by 10% his new saving is 50, i.e 140−90=50.
I want to find the percentage of saving is increased, so from saving difference 50−20 is 30.
30/20×100=150%. I got 150%, but the answer is 160%.
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