Question

The train travels 120 miles in 2 hours. How far will the train travel in 4 hours?

Answer 1

So 120/2 and x/4 p.s it can also be written 120/x = 2/4 depending on which way you like to solve proportions. Cross multiply 4· 120= 480 and 2·X= 2x Divide 480 by 2 and x= 240

Answer 2

120 miles - 2 hours
x miles - 4 hours
cross multiply:

`2x=4 * 120 \\ 2x=480 \\ x=(480)/(2) \\ x=240`

It will travel 240 miles.