If the selling price is doubled,the profit is tripled,what is the percentage of profit?? Options:
A) 50%  B) 100%  C) 150%  D) 200%  E) 250%
Let the profit be 10, then   SP-CP=10 and 2SP-CP=30   Solving the above equations we get SP=20 and CP=10, so CP=Profit   Hence the answer is 100% (100%)
<result>B</result>
If the selling price is doubled,the profit is tripled,what is the percentage of profit??