Question

Leo buys 5 DVDs for 60$. At this rate, how much would he pay for 3 DVDs?

Answer 1

$\frac{\ 60}{5}=\frac{x}{3}\ \ \ \ \ \ |cross\ multiply\\\\5x=3\times\ 60\\\\5x=\ 180\ \ \ \ \ \ |divide\ both\ sides\ by\ 5\\\\\boxed{x=\ 36}\leftarrow answer$

Answer 2

60 divided by 5, is 12. In which case, 12 times 3... Is 36$. So Leo would pay 36$ for 3 DVDs at the rate of 12$ for each DVD