Question

Sheng drives at a constant speed for 0.2

hours to get to the train station. He then boards a train that takes him 35
miles to downtown. His whole trip is 42
miles long.

How can Sheng determine his driving speed?

Answer 1

The train travels an average 12 miles/hr

We always need to be working in the same units, so lets convert the trains speed to minutes since the time traveled is in minutes.

12 miles / 60 min = 0.2 miles/min