Question

If a human heart beats once in every 0.8s, find the number of times it has beaten in the life of 10 year old boy. [Hint: Number of seconds in 10 years = 365.25 * 10 * 86400 , Number of times the human heart beats in 10 years 365.25x864000/0.8]

Answer 1

394,200,00

Step-by-step explanation:

Hi, the hint is similar to the answer.

Seems you know it already.

So in a second the heart beats

1/0.8 = 1.25

There's are 31,536,000 seconds in a year

31,536,000 • 1.25 = 39,420,000

The boy's heart beat 39,420,000 time a year

For 10 years we multiply how many times he breathes a year by 10

= 39,420,000 × 10

= 394,200,000

Therefore, he breathes 394,200,00 times in 10 yr