Answer:
147168000 beats
Step-by-step explanation:
Given,
The average heart rate is 70.0 beats/min.
That is, the number of heart beat in one minute = 70,
∵ 1 year = 365 days, 1 day = 24 hours, 1 hour = 60 minutes,
So, the number of minutes in 1 years = 365 × 60 × 24 × 1 = 525600
Thus, the number of minutes in 4 years = 4 × 525600 = 2102400,
So, the number of heart beats in 2102400 minutes = 70 × 2102400 = 147168000
Hence, the number of heart beats in 4 years is 14716800,
Now, 4 can be written as 4.0, 4.00 or 4.000,
That is, if we add zeros after decimal the number does not change.
Therefore, the number of heart beats in 4, 4.0, 4.00 and 4.00 would be same.
