Percentage Practice Test 7 with solutions

Question : 31 of 40

Marks: +1, -0

The price of wheat decreased by 15%. By how much per cent should a family increase its consumption of wheat so as not to decrease its expenditure.

Solution:

Let x be 15%.
Increase in consumption

=x/{100-x}×100%

=15/{100-15}×100%

=17.65%

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