Question

How long will it take a population of 4000 to double if its annual growth rate is 7.1% round to the nearest year

Answer 1

Given:

Population given =4000.

Annual growth rate=

`r=7.1\%`

Required:

Time (number of years) to double the population.

Answer:

By using the following formula

Number of years to double (y)=

`\begin{gathered} y=(70)/(r) \\ y=(70)/(7.1) \\ y=9.9 \end{gathered}`

Final Answer:

The number of years required to double the population of 4000 is approximately 9.9 years.