Question

In 2010, the population of a city was 105,000. From 2010 to 2015, the population grew by 8%. From 2015 to 2020, it fell by 6%. How much did the population grow from 2010 to 2015, to the nearest 100 people?

Answer 1

ANSWER:

The population increased by 8,400 people making the total population of 113,400 people

STEP-BY-STEP EXPLANATION:

In this case we must add the value of the current population and then multiply that population by the percentage of increase, just like that:

$105000+105000\cdot\frac{8}{100}=105000+8400=113400$

Which means that the population increased between 2010 to 2015 by 8,400 people, making the total population of 113,400 people.