Question

The population of a town increases
by 5% during the first year and
by 7% during the second
years
the end of second year the
population was 40446. What was
the population at the beginning
6​

Answer 1

Let the size of population at the beginning  =x

Then x×  

100

105

​  

×  

100

95

​  

=9975

⇒x=  

105×95

9975×100×100

​  

 

⇒x=  

9975

9975×100×100

​  

 

⇒x=10000