Over the course of a year, the population of rats in Memphis increased from 350000 to 406000.

What was the percent increase of the population of rats?

Express your answer as a percent.

It is very important to look at all the details that are already given in the question. Only then the problem should be started for solving.

Initial population of Memphis = 350000

population of Memphis after 1 year = 406000

Then

Increase in population of Memphis in a year = 406000 - 350000

= 56000

Then

Percentage increase in the

population of Memphis in a year = (56000/350000) * 100

= (56 * 10) / 35

= 560/35

= 16 percent

So there is a 16% increase in the population of Memphis in a year.