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Question

A man spends 80% of his income in expenditure, with the increase in the cost of living his expenditure increases by 3712 and his income increases by 1623, then the present percent saving is

A
123
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B
765
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C
557
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D
9311
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Solution

The correct option is C 557
If the income was Rs 100 then the expenditure was Rs 80
Income increase by 1623% Income becomes Rs 11623
Expenditure increases by 3712% Expenditure=80+3712% of 80=80+37.5100×80=80+30=Rs 110
Present saving =Rs 11623-Rs 110=623
Present per cent saving =62311623×100=2033503×100=2000350=557%

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