If the price of sugar rises from Rs. 10 per kg to Rs. 11 per kg, a person, to have no increase in the expenditure on sugar, will have to reduce his consumption of sugar by
Choose the most appropriate option
A) 9%	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 × 11 = x = 91 kg.   ∴ Reduction in consumption = 9%.   9%nswer 9%
<result>A</result>
If the price of sugar rises from Rs. 10 per kg to Rs. 11 per kg, a person, to have no increase in the expenditure on sugar, will have to reduce his consumption of sugar by