Question

The population of a town increase by 20% every year . if it's present population is 2,16,000 what will be the population before 2years​

Answer 1

Step-by-step explanation:

Given:

• The present population of a town.
• The population of a town increase by 20%.

To Find:

• The population of the town after 2 years.

Solution:

We can find it by the compound interest formula but we solve it another way

Compound interest formula-

$\tt \leadsto \: P(1 + \frac{R}{100} ) ^{n}$

Just put the given values and output is your answer

Another way:

Present population= 216000

It increases by 20% every years.

So,

Population of the town after 1 year

→216000+20% of 216000

→216000+43200

→259200

Population of the town after 2 years

→259200+20% of 259200

→259200+51840

→311040