The price of sugar is increased by 20%.By what percent must the consumption of sugar be decrease so that the expenditure on sugar may remain the same?
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Answer:
The price of sugar is increased by 20%.By what percent must the consumption of sugar be decrease so that the expenditure on sugar may remain the same
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Step-by-step explanation:
Let the original price of the sugar be Rs100
And the consumption be 1kg
Then total expenditure will be Rs100×1=Rs100
Now, when price is increased by 20 %, then new price is Rs120
Then new expense will be Rs120×1=Rs120
For expense to be same to Rs100,
% decrease in sugar consumption =
120
120−100
×100=
3
50
=16.66=approx. 17 %
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