By selling 50 meters of cloth. I gain the selling price of 15 meters. Find the gain percent? Choices:
A) 42 6/9%	B) 42 5/7%	C) 42 6/8%	D) 42 6/7%	E) 43 6/7%
SP = CP + g   50 SP = 50 CP + 15 SP   35 SP = 50 CP   35 --- 15 CP gain   100 --- ? =&gt; 42 6/7%   Answer: 42 6/7%
<result>D</result>
By selling 50 meters of cloth. I gain the selling price of 15 meters. Find the gain percent?