Question

If a salesman sells a watch at 90% of the cost price, the watch will be sold at $108. At what price must he sell the watch if he wants to make $30?​

Answer 1

$150

Explanation:

Let's call the cost price of the watch C. The salesperson sells the watch at 90% of the cost price, so they sell the watch for 0.9 * C dollars.

We know that 0.9 * C = 108 dollars, so C = 108 / 0.9 = <<108/0.9=120>>120 dollars.

The salesperson wants to make a profit of $30, so they need to sell the watch for 120 + 30 = <<120+30=150>>150 dollars.