Question

It takes you 28 minutes to go 8 miles. If you continue traveling at the same rate, how long will it take you to go 15 miles?

Answer 1

8 miles = 28 minutes

1 mile = 28 ÷ 8 = 3.5 minutes

15 miles = 3.5 x 15 = 52.5 minutes

Answer: 52.5 minutes

Answer 2

This is a proportion problem, and the answer is

`15 {\textrm{ miles}} * \frac{28 \textrm{ minutes}}{8 {\textrm{ miles}}} = (105)/(2) = 52.5 \textrm { minutes}`