Based on the table, how many minutes does a person need to run to burn 100 calories?
Min of running |
Calories burned |
4 |
20 |
8 |
40 |
? |
100 |
A. 12
B. 20
C. 28
D. 68
Dividing the first entry by 2, we find that running 2 minutes burns 10 calories. Therefore,
to burn 10 times that would take 10 times 2 minutes.
The answer is B. 20