Ravi buys some toffees at 5 for a rupee and sells them at 2 for a rupe

1.	Ravi buys some toffees at 5 for a rupee and sells them at 2 for a rupee. His gain per cent is A. 30% B. 40% C. 50% D. 150%
Answer» Cost Price of 1 toffee = Rs.1/5 Selling Price of 1 toffee = Rs.1/2 Gain = SP – CP = 1/2 - 1/5 = 3/10 \(Gain\%=\frac{Gain\,\times\,100}{CP}\) \(=\frac{\frac{3}{10}\times100}{\frac{1}{5}}\) = 150%

Ravi buys some toffees at 5 for a rupee and sells them at 2 for a rupee. His gain per cent is A. 30% B. 40% C. 50% D. 150%

Answer»

Cost Price of 1 toffee = Rs.1/5

Selling Price of 1 toffee = Rs.1/2

Gain = SP – CP

= 1/2 - 1/5

= 3/10

\(Gain\%=\frac{Gain\,\times\,100}{CP}\)

\(=\frac{\frac{3}{10}\times100}{\frac{1}{5}}\)

= 150%