A vendor bough toffees at 6 for a rupee. how many for a rupee must he sell to gain 20%?  Choose the correct choice from the following choices
A) 3  B) 8  C) 5  D) 9  E) 1
C.P or toffees = Rs.1, S.P of 6 toffee = 120% of Rs.1 = Rs.6/5   for Rs. 6/5, toffees sold=6, for Rs.1, toffees sold= (6*5/6)= 
<gadget id="calculator">(6*5/6)</gadget>
<output>5</output>
5   5orrect answer (5)
<result>C</result>
A vendor bough toffees at 6 for a rupee. how many for a rupee must he sell to gain 20%?