An average person burns off 100 calories if they bicycle for 15 minutes at 9 mph. There are approximately 3,500 calories in one pound. Harry signed up at the local fitness center and spent 45 minutes on the stationary bicycle pedaling at a steady rate of 9 mph. How many calories did he burn? Did he use up a pound?
A)4,500 calories; yes
B)900 calories; no
C)300 calories; no
D)3,200 calories; no

Question

Quizplus · Accepted Answer

Harry burned 300 calories (100 calories per 15 minutes, so 300 calories for 45 minutes). He did not use up a pound, as 3,500 calories are needed to lose one pound.

An Average Person Burns Off 100 Calories If They Bicycle