A man buys an article for $10. and sells it for $25. Find the gain percent? Choose the most appropriate option:
A) 25%
B) 50%
C) 20%
D) 150%
E) 300%
C.P. = $10   S.P. = $25   Gain = $15   Gain% = 15/10 *100= 
<gadget id="calculator">15/10 *100</gadget>
<output>150</output>
150%   Answer is 150%
<result>D</result>
A man buys an article for $10. and sells it for $25. Find the gain percent?