Question

A class trip was 234 miles away from the school. If the bus driver drove at a constant speed of 70 mph, about how long did the trip take?

A. 3 hours 20 minutes
B. 3 hours 56 minutes
C. 4 hours
D. 3 hours 34 minutes

It is not D!

Answer 1

A. 3 hours and 20 minutes is the closest answer

Answer 2

A. 3 hours 20 minutes

Explanation:

The distance divided by the speed gives you the time.

(234 miles)/(70 mph) = 3.343 hours.

3.343 hours is decimal hours. We need hours and minutes.

1 hour = 60 minutes. We separate the whole hours from the decimal part of the hours, and we multiply the decimal part of the hours by 60 to find minutes.

3.343 hours =

= 3 hours + 0.343 hours

= 3 hours + 0.343 hours * 60 minutes/hour =

= 3 hours + 20.6 minutes

The closest answer is:

A. 3 hours 20 minutes