If selling price is doubled, the profit triples. Find the profit percent: Choose the most appropriate option:
A) 200%	B) 500%	C) 100%	D) 450%	E) 800%
C   C.P. be Rs. x and S.P. be Rx. y.   Then, 3(y - x) = (2y - x) =&gt; y = 2x   Profit = (y - x) = Rs. (2x - x) = Rs. x   Profit % = x/x * 100 = 100%.
<result>C</result>
If selling price is doubled, the profit triples. Find the profit percent: