The price of petrol goes up by 10%. By how much per cent must a motori – InterviewSolution

1.	The price of petrol goes up by 10%. By how much per cent must a motorist reduce the consumption of petrol so that the expenditure on it remains unchanged ?
Answer» The price of petrol goes up by 10 $%$ . By how much per cent must a motorist reduce the consumption of petrol so that the expenditure on it remains unchanged ?

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