Question

A vendor bought toffees at 12 for a rupee. How many for a rupee must he sell to gain 20%?

• A. 8
• B. 10
• C. 9
• D. 11
• E. None of the above

Answer 1

The correct option is B 10

Let us say he bought 120 toffees. Total cost $=\frac{120}{12}=Rs.10$
20% profit on Rs. 10 = Rs. 2. Therefore, he earned 12 Rs.
$\frac{120}{12}=10$ Toffees For a rupee.