A man buys an article for $10. and sells it for $25. Find the gain percent?  Choose the correct choice from the following options:	A) 25 %	B) 50 %	C) 20 %	D) 150 %	E) 300 %

Rationale: "c . p . = $ 10 s . p . = $ 25 gain = $ 15 gain % = 15 / 10 * 100 = 150 % answer is d"
Answer: D