Question

The price of tea is increased by 20% by how much percent a housewife should reduce the consumption of tea so as not to increase the expenditure on tea?

Answer 1

Answer:

Let the consumption 100

increase 10% Now it is 110

110x (loo-R) loo=loo

lo0-R=100x100/110=90 IO/11

100-R = 90 Io/11

R = 100-90 10/11

9 9/11 %should be reduced