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1. Arun bought toffees at 6 for a rupee. How many for a rupee he should sell to gain 20%?

A. 2

B. 3

C. 4

D. 5

Solution:

CP for one toffee =

\frac{100}{6}

SP will be 20% above the CP.
So,
SP for one toffee =

\frac{100}{6} \times 1.2 = \frac{100}{5} = 20

Thus, He should sell 5 toffee for Rs. 1 (100 paise)

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