In a renowned city, the average birth rate is 7 people every two seconds and the death rate is 2 people every two seconds. Estimate the size of the population net increase that occurs in one day.	Choose the correct choice from the following answers
A) 215,000 B) 216,000 C) 217,000 D) 218,000 E) 219,000
This question can be modified so that the birth rate is given every m seconds and the death rate is given every n seconds.   For this particular question : Increase in the population every 2 seconds = 7-2= 
<gadget id="calculator">7-2</gadget>
<output>5</output>
5 people.   Total 2 second interval in a day= 24*60*60/2 = 43,200   Population increase = 43,200 * 5 = 216,000. Hence 216,000.
<result>B</result>
In a renowned city, the average birth rate is 7 people every two seconds and the death rate is 2 people every two seconds. Estimate the size of the population net increase that occurs in one day.