Question

A fruit vendor buys 300 Apple at rupees 50 per dozen the vendors old 200 of them at rupees 60 per dozen at what rate per Apple should the vendors sell the remaining apples to make an overall profit of 12%

Answer 1

I don't know , please tell it to me

Answer 2

you want income = cost * 1.12, so
200 * 60/12 + 100 * x/12 = 300 * 50/12 * 1.12
solve for x, the price per dozen.