Find the percentage gain if a shop owner sells 10 mtr of fabric and gains Cost Price of 2 meters?  Options:
A) 10%
B) 12%
C) 19%
D) 25%
E) 20%
Let cost of each metre be Rs. 100.   Therefore, cost price of 2m cloth = 2*100= 
<gadget id="calculator">2*100</gadget>
<output>200</output>
200   cost price of 10m cloth= 10*100= 
<gadget id="calculator">10*100</gadget>
<output>1_000</output>
1000   Since the trader made the CP of 2m from the sale of 10m therefore   Profit on sale of 10m= cost price of 2 m cloth = 200   Selling price of 10m = 1000+200= 
<gadget id="calculator">1000+200</gadget>
<output>1_200</output>
1200   Profit %= 20%   20%
<result>E</result>
Find the percentage gain if a shop owner sells 10 mtr of fabric and gains Cost Price of 2 meters?