A vendor bought toffees at 6 for a dollar. How many for a dollar must he sell to gain 20%?
Choose the correct choice from the following.
A) 7	B) 6	C) 5	D) 9	E) 8
C   5   C.P. of 6 toffees = $ 1   S.P. of 6 toffees = 120% of $ 1 = $ 6/5   For $ 6/5, toffees sold = 6. For $ 1.   Toffees sold = 6 * 5/6= 
<gadget id="calculator">6 * 5/6</gadget>
<output>5</output>
5
<result>C</result>
A vendor bought toffees at 6 for a dollar. How many for a dollar must he sell to gain 20%?