Question

a man increases the price of a car first by 10%, then offers a 10% discount and then sells it. What's his net profit/loss?

Answer 1

Price of car = P

10% increase = (1.10)*P

10% decrease (after the 10% increase) = (0.90)*((1.10)*P)

So multiply 0.90 and 1.10 and see what that is. Profit if it's > 1 , loss if it's < 1. :)

Answer 2

It'll always be a loss of 1%, irrespective of the price