Question

Human heart, on an average, beats 72 times a minute. What is its beat period in seconds?

Answer 1

total beats= 72times
time= in1minute
seconds in a minute= 60 sec.
beat period in a second= 72/60=1.2times

Answer 2

Human heart beats 72 times for 60 seconds i.e. 1 minute
Beats per second = 72 =1.2
                             60