If the selling price is quadrupled,the profit is pentadruple, what is the percentage of profit??
Pick
A) 50% B) 100% C) 150% D) 200% E) 250%
we can make two equations from the given info..   let selling price be S and cost price be C..   so profit=P=S-C...   if S is doubled profit is tripled..   so 5P=4S-C..   or S=4P...   therefore C=P..   % of profit=P/P=100%   100%
<result>B</result>
If the selling price is quadrupled,the profit is pentadruple, what is the percentage of profit??