Question

A man brought a toffee at 3 for 1 rupee how many for a rupee must he sell to gain 50%

Answer 1

two rupee of course is the correct answer

Answer 2

Heya!

Given,
3 toffees for 1 rupee

We know, 1 rupee = 100 paise
Then 1 tofee = 34 paise approx.

To gain 50%, the SP must be 1.5 times of the CP, that'll be (100 + 50)/100 = ₹1.5

Which is 1.5 rupees for 3 toffees or 2 toffees for 1 rupee.

Hope it helps!