A pawn broker buys a tv and a computer for $600. He sells the computer at a markup of 30% and the tv

A pawn broker buys a tv and a computer for $600. He sells the computer at a markup of 30% and the tv at a markup of 20%. If he makes a profit of $165 on the sale of the two items, what did he pay for the computer?

Let c be the price of the computer and t be the price of the tv. WE have:

1. c + t = 600
2. c(1.3) + t(1.2) = 765 <-- (600 + 165 profit)

Using our simultaneous equation calculator, we get:
c = 450
t = 150