If a person is born every 5 seconds and a person dies every 12 seconds, then how many seconds does it take for the population to grow by one person? Please explain as well.

Question

asked Sep 22, 2019 46.7k views

1 Answer

Bill Kotsias · Answer 1 · 2019-09-26T20:41:55+0000

Solution:

As per the problem

A person is born every 5 seconds and a person dies every 12 seconds.

Here the LCD of 5 and 12 is 60.

The number of person born in 60 seconds
$=(60)/(5)=12\\$

The Number of person died in 12 seconds
=(60)/(12)=5

Hence Population increase in 60 seconds is
$=12-5=7\\$

Hence time required to increase the population by one
$=(60)/(7) \ \ seconds\\$