If cost of sugar increases by 25%. How much percent consumption of sugar should be decreased in order to keep expenditure fixed? Pick one
A) 20
B) 10
C) 15
D) 25
E) 30
100   125   -----   125 ----- 25   100 ------ ? =&gt; 20%   20NSWER 20
<result>A</result>
If cost of sugar increases by 25%. How much percent consumption of sugar should be decreased in order to keep expenditure fixed?