1.  A vendor bought toffees at 6 for a rupee. How many for a rupee must he sell to gain 20%?
A. 3
B. 4
C. 5
D. 6

Answer: Option C

Explanation:

C.P. of 6 toffees = Re. 1

S.P. of 6 toffees = 120% of Re. 1 = ₹ 6
5

For ₹ 6 , toffees sold = 6.
5

For Re. 1, toffees sold = 6 x 5 = 5.
6