A person's heartbeat is 77 beats per minute. If his/her heart beats 3.1e9 times in a lifetime, how long (in whole years) does the person live? Disregard leap years.

Question

I know you set it up like 77*60*24*365= divided by 3.1e9. However, I forgot how to get the answer

Answer 1

Set it up like this:

life in years = (3.1e9 beats)(1 min/77 beats)(1 hour/60 min)(1 day/24hours)(1 year/365 days) or

life in years = (3.1e9)/(77*60*24*365)