In a Special Triathlon, Denita Swam 1 Mile in 20

Multiple Choice

In a special triathlon, Denita swam 1 mile in 20 minutes, biked 25 miles in 50 minutes, and then ran 5 miles in 50 minutes. What was her "average" speed in miles/hour for the race, to the nearest tenth?

A) 30.0 miles/hour
B) 13.0 miles/hour
C) 3.0 miles/hour
D) 6.0 miles/hour
E) 15.5 miles/hour