If the price of sugar rises from Rs.10 per kg to Rs. 12 per kg, a person, to have no increase in the expenditure on sugar, will have to reduce his consumption of sugar by
Choose the correct choice from the following answers:
A) 17% B) 20% C) 25% D) 30% E) none
Sol.   Let the original consumption = 100 kg and new consumption = x kg.   So, 100 x 10 = x × 12 = x = 83 kg.   ∴ Reduction in consumption = 17%.   17%nswer 17%
<result>A</result>
If the price of sugar rises from Rs.10 per kg to Rs. 12 per kg, a person, to have no increase in the expenditure on sugar, will have to reduce his consumption of sugar by