If selling price is doubled, the profit triples. Find the profit percent. Pick:  A) 100 %  B) 50 %  C) 25 %  D) 18 %  E) 12 %
Explanation:   Let C.P. be Rs. x and S.P. be Rs. y.   Then, 3(y - x) = (2y - x) y = 2x.   Profit = Rs. (y - x) = Rs. (2x - x) = Rs. x.   Profit % =(x/x*100)%=100%   100 %nswer:100 %
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If selling price is doubled, the profit triples. Find the profit percent.