By selling a 50meters cloth one gain the selling price of 20meters. Find the gain percent? Select the correct option:
A) 50%
B) 100%
C) 75%
D) 25%
E) 90%
Let the cost of 1meter cloth be x   Gain = 50x-20x = 30x   gain % 50 -20= 
<gadget id="calculator">50 -20</gadget>
<output>30</output>
30x   gain %= 30x/30x*100 = 100%   Answer is 100%30 /30 *100= 
<gadget id="calculator">30 /30 *100</gadget>
<output>100</output>
100%   Answer is 100%
<result>B</result>
By selling a 50meters cloth one gain the selling price of 20meters. Find the gain percent?