Question

Jessie rode her bike up a 4 km hill then back down. It took her 3 hour

to make the round trip. What was her average speed?
Check your units. Distance should be in kilometer and time should be in hour.

Answer 1

8 km per hour or 8 km/hr

Explanation:

If riding 4 km took her 1/2 an hour then you multiply by 2 to get 8 km for 1 hr. 8 km for 1 hour means she was going 8 km per hour.