A shopkeeper forced to sell at cost price, uses a 850 grams weight for a kilogram. What is his gain percent?  Pick one.
A) 17.65%	B) 9%	C) 11.11%	D) 12 %	E) None of these
Shopkeeper sells 850g instead of 1000g.   So, his gain = 1000 - 850= 
<gadget id="calculator">1000 - 850</gadget>
<output>150</output>
150g.   Thus, %Gain= (150 *100)/850 = 17.65%.   answer : OPTION 17.65%
<result>A</result>
A shopkeeper forced to sell at cost price, uses a 850 grams weight for a kilogram. What is his gain percent?