Question

The population of a town increases at 5% per annum. If its present population is 16000. what will be its population after 2 years​

Answer 1

Let the population in 2006 be x.

Pop. in 2009=x×(1+

100

5

)

3

⇒1,38,915=x×(

20

21

)

3

⇒x=

9261

138915×8000

=120000

Answer 2

Answer:

The population of the town will be 17600.

Step-by-step explanation:

So,

Principal = 16000

Rate = 5% p.a.

Years = 2

Simple Interest = PRT÷ 100

                         = 16000×5×2÷100

                         = 1600

Amount = Principal + Interest

             = 16000 + 1600

             = 17600 Ans.