Question

Suppose a population of 50 crickets doubles in size every 4 months. How many crickets will there be after 5 years?

Answer 1

Here \[a _{1}=50\]
\[n=\frac{ 5\times12 }{ 4 }=15\]
r=2
\[a _{n}=a _{1}r ^{n-1}=?\]

Answer 2

YA IK THAT BUT WHATS THE ANSWER. IM CONFUSED