If the price has fallen by 15% what percent of its consumption be: increased so that the expenditure may be the same as before? Pick
A) A)11%  B) B)10%  C) 1/9 %  D) 3/13 %  E) %
100 – 15 = 85   85------15   100------? =&gt; 3/13%   ANSWER:3/13 %
<result>D</result>
If the price has fallen by 15% what percent of its consumption be: increased so that the expenditure may be the same as before?