Answer: The heart pumps 124.2 billion cm³ of blood in a lifetime
Explanation:
as an adult the pulse rate average must be around 72 beats per minute.
The heart beats about 103,680 times in a day.
There are 365 days in a year
number of heart beat in a year = 365 days x 103,680 = 37,843,200 beats in a year
For every the heart pumps 50cm³ of blood,
Hence,
Amount of blood pump in a year = 50 x 37,843,200 = 1,892,160,000cm³ of blood pumped in a year.
Using the estimated lifespan average an individual is 69 years
So in a life time,
The human heart pumps = 1,892,160,000 x 69 years = 124,200,000,000
If the heart pumps 50cm³ of blood per beat, the heart pumps a total of 130,559,040,000 cm³ (130.6 billion cm³) of blood in a LIFETIME.
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