By selling 150 mangoes, a fruit-seller gains the selling price of 30 mangoes. Find the gain percent?	Choose the correct choice from the following choices:
A) 22%
B) 25%
C) 28%
D) 87%
E) 16%
SP = CP + g   150 SP = 150 CP + 30 SP   120 SP = 150 CP   120 --- 30 CP   100 --- ? =&gt; 25%   Answer: 25%
<result>B</result>
By selling 150 mangoes, a fruit-seller gains the selling price of 30 mangoes. Find the gain percent?