Problem:
Eric plans to compete in a triathlon. He can average miles per hour in the -mile swim and miles per hour in the -mile run. His goal is to finish the triathlon in hours. To accomplish his goal what must his average speed, in miles per hour, be for the -mile bicycle ride?
Answer Choices:
A.
B.
C.
D.
E.
Solution:
Eric can complete the swim in of an hour. He can complete the run in of an hour. This leaves hours to complete the bicycle ride. His average speed for the ride must be miles per hour.
The problems on this page are the property of the MAA's American Mathematics Competitions