Nirmala gains 10% by selling her bicycle for a certain price. If she sells it at 2 times the price, the percentage of profit will be :	Choose the correct choice from the following.
A) 130%	B) 140%	C) 160%	D) 120%	E) None of these
Explanation :   Solution: Let C.P =Rs. x. then, S.P. = Rs. (110% of x) = Rs. 11x/10.   New S.P. = Rs. (2*11x/10) =Rs. 22x/10. profit = Rs. (22x/10 - x) = Rs. 6x/5.   .'. Profit% = (6x/5 *1/x * 100) = 120%.   Answer : 120%
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Nirmala gains 10% by selling her bicycle for a certain price. If she sells it at 2 times the price, the percentage of profit will be :