In the new budget , the price of kerosene oil rose by 25%. By how much percent must a person reduce his consumption so that his expenditure on it does not increase ? Choose the correct choice from the following
A) 10	B) 20	C) 30	D) 40	E) None of them
Reduction in consumption = [((R/(100+R))*100]%   =[(25/125)*100= 
<gadget id="calculator">(25/125)*100</gadget>
<output>20</output>
20%.   Answer is 20.
<result>B</result>
In the new budget , the price of kerosene oil rose by 25%. By how much percent must a person reduce his consumption so that his expenditure on it does not increase ?