Question

John’s THR zone is 146bpm - 176bpm. Jack’s THR zone is 151bpm - 178bpm. They stop jogging and take their pulse, and both count their heart rate at 144bpm. If they increase their heart rates by 5bpm, who will be in his THR zone?

a) John
b) Jack
c) Both John and Jack
d) Neither John nor Jack

Answer 1

Both John and Jack will be in their THR zone after increasing their heart rates by 5bpm.

Step-by-step explanation:

In this case, John's THR zone is 146bpm - 176bpm and Jack's THR zone is 151bpm - 178bpm. Both John and Jack measure their heart rate at 144bpm after stopping jogging. If they increase their heart rates by 5bpm, John's heart rate would be 149bpm and Jack's heart rate would be 149bpm.

Since both John and Jack's heart rates will be within their respective THR zones after the increase, the answer is c) Both John and Jack.