Question

PERCENTAGES
15. If the price of an article has fallen by 20% then what percent of its consumption be increased so
that the expenditure be the same as before?
1 25%
2) 10%
4) 15%​

Answer 1

loss %=20%

let cp=100

loss=20%*100

=20/100*100

=20

so, 100-20 =80(actual cost)

so,. we have to increase 20₹.

(-80)