Question 483316
It takes Omar 10 minutes to bicycle 1 mile to school and 20 minutes to return the same way.
 What is his average speed in miles per hour for the round trip?
:
10 + 20 = 30 min which is .5 hrs
Round trip of 2 mi takes .5 hrs
{{{2/.5}}} = 4 mph is the average for the round trip