Question

Due to an increase in the price of sugar by 25%, by how much per cent must a house holder decrease the consumption of sugar so that there is no increase in the expenditure of sugar?

Answer 1

Let the price before increase be $Rs.100$

Then , as the tpercentage increase $=25$%

Therefore, increase in price $=\frac{25}{100}\times 100$

$=Rs.25$

Therefore increased price $=Rs.125$

Therefore the percentage by which house wife should decrease the consumption be( $\frac{25}{125}\times 100$)%

$=20$%