Question

A population of rabbits is growing at the rate of 23 percent per annum. At that rate the population would double every how many years?

Answer 1

Given:

A population of rabbits is growing at the rate of 23% per annum.

Required:

To find the number of years that the population would double.

Explanation:

If growth rate remain constant, total number of years it will take to double the population “n" will be:

$n=\frac{70}{r}$

(where r is annual growth rate)

Hence, for your question it would be

$\begin{gathered} n=\frac{70}{25} \\ \\ n=2.8 \\ \\ n\approx3 \end{gathered}$

Final Answer:

3 years.