You are driving home from school steadily at 55 mph for 200 miles. It then begins to rain and you slow to 45 mph. You arrive home after driving 5 hours 20 minutes. (a) How far is your hometown from school? (b) What was your average speed?

Solution:

There are two parts of the trip.

The first part is traveled at a speed of 55 m.p.h. for 200 miles.

The second part is traveled at a speed of 45 m.p.h.