By selling 150 mangoes, a fruit-seller gains the selling price of 30 mangoes. Find the gain percent?	Choices:	A) 25%	B) 20%	C) 18%	D) 30%	E) 40%
SP = CP + g   150 SP = 150 CP + 30 SP   120 SP = 150 CP   120 --- 30 CP   100 --- ? =&gt; 25%   25%NSWER 25%
<result>A</result>
By selling 150 mangoes, a fruit-seller gains the selling price of 30 mangoes. Find the gain percent?