posted by scooby .
in order to achieve maximum results from aerobic exercise should maintain one's heart rat at a certain level. a 30 year oldwoman with a resting heart rate of 65beats per minute, should keep her heart rate between 140 and 165 beats per minute while exercising. She checks her pulse for 10 sec while exercising. What should the number of beats be?
10 seconds is 1/6 of a minute (60 seconds). Therefore you need to divide the beats/minute by 6.