Question

Ex. 4. In a certain year, the population of a city was about 78 lakh. If it increases by 5%, what will
be its population after one year?​

Answer 1

Answer:

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