Robert is waiting at the Littleville train
station for his cousin to arrive from
Middleton. His cousin called 20
minutes ago and said he was about
37 miles from Littleville and should be
there in about half an hour. Assuming
the cousin's time estimate is correct,
how fast is the train (in miles per
hour) traveling?
The fact that he called 20 minutes ago is irrelevant.
He said it would take 30 minutes to go 37 miles
speed = distance/time = 37/(1/2) mph = 74 mph