Question

A man buys toffees at 10 for rupees 3 and sell them at 8 for rupees 3 .find his gain per percent?

Answer 1

Total Toffee=10
CP=₹3
CP of 1 Toffee=₹10/3

Total Toffee=8
SP=₹3
SP of 1 Toffee=₹8/3

Profit =8/3×3/10×100
=80%
$\boxed{\textbf{Thanks}}$

Answer 2

g=SP-CP. CP=10÷3=3.333. SP= 15÷4=3.76. 3.76-3.33=0.43. g% =0.43÷3.33×100=12.912%