If the price of sugar rises from Rs. 6 per kg to Rs. 7.50 per kg, a person, to have no increase in his expenditure on sugar, will have to reduce his consumption of sugar by	Choose the most appropriate option:	A) 10%	B) 20%	C) 25%	D) 30%	E) None
Solution   Let the original consumption = 100 kg and new consumption = x kg.   So, 100 x 6 = x × 7.50   x = 80 kg.   Reduction in consumption = 20%.   Answer 20%
<result>B</result>
If the price of sugar rises from Rs. 6 per kg to Rs. 7.50 per kg, a person, to have no increase in his expenditure on sugar, will have to reduce his consumption of sugar by