By selling 50 meters of cloth. I gain the selling price of 15 meters. Find the gain percent?  Select: A) 42 6/8% B) 42 8/7% C) 482 6/7% D) 42 6/7% E) 42 1/7%
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?