Question

Roughly how many heartbeats are there in a lifetime?

(a) ( 10⁶ )
(b) ( 10⁸ )
(c) ( 10⁹ )
(d) ( 10¹⁰ )

Answer 1

2.5 billion times
So d

Answer 2

The average number of heartbeats in a lifetime is approximately 3,025,536,000 beats.

Step-by-step explanation:

The average heart rate of a human is approximately 72 beats per minute. To calculate the number of heartbeats in a lifetime, we need to know the average lifespan of a human. Let's assume it is 80 years, which is equivalent to 80 imes 365 imes 24 imes 60 = 42,048,000 minutes. To find the number of heartbeats, we can multiply the average heart rate per minute by the total number of minutes in a lifetime. Thus, the number of heartbeats in a lifetime would be 72 imes 42,048,000 = 3,025,536,000 beats. Therefore, the approximate number of heartbeats in a lifetime is (d) (10¹⁰).