A human heart beats once in 0.8s. How many times it will beat in the life of 70 years of a man?

A human heart beats once in 0.8s. How many times it will beat in the l

1.	A human heart beats once in 0.8s. How many times it will beat in the life of 70 years of a man?
Answer» Solution :Life span of man =70 years PERIOD of heart BEAT = 0.8s TOTAL number of heart beat `= (70xx365.25xx24xx60xx60)/(0.8)` `=2.76xx10^(9)` TIMES.