You start a new workout program over the weekend and try out some different short sessions. You obtain the results summarized in the graph shown. How many calories does this workout program burn per minute?

1. 20 minutes
2. 8 calories/minutes
3. 160 calories.
4. 0.125 minutes/calorie

The correct answer is 2. 8 calories/minute.

To determine the calories burned per minute, you divide the total calories burned by the duration of the workout in minutes.

In this case, the total calories burned after 20 minutes is 160 calories (as given in the graph). Thus, dividing 160 calories by 20 minutes gives us 8 calories burned per minute.