By selling 12 pencils for a rupee a man loses 20%. How many for a rupee should he sell in order to gain 20%?
Choose one:	A) 7	B) 5	C) 8	D) 12	E) 15
80% --- 12   120% --- ?     80/120 * 12= 
<gadget id="calculator">  80/120 * 12</gadget>
<output>8</output>
8   ANSWER 8
<result>C</result>
By selling 12 pencils for a rupee a man loses 20%. How many for a rupee should he sell in order to gain 20%?