Question

After riding the stationary bike for just 8 minutes, Betty had burned 50

calories. How long must she ride if she wants to burn 325 calories?

Answer 1

52 minutes

Explanation:

50/8=6.25

325/6.25=52

6.25*52=325

Answer 2

She has to ride for 52 minutes!

Explanation:

50/8=6.25

325/6.25=52

6.25*52=325