Question

if you count 10 beats in 6 seconds, what is your approximate heart rate?
60 bpm
100 bpm
120 bpm
180 bpm

Explanation:

Step1: Find beats per second

We know there are 10 beats in 6 seconds. So the number of beats per second is $\frac{10}{6}=\frac{5}{3}$ beats per second.

Step2: Calculate beats per minute

Since there are 60 seconds in a minute, we multiply the beats - per - second value by 60. So the heart rate (beats per minute) is $\frac{5}{3}\times60 = 100$ bpm.

Answer:

100 bpm