What will the population be in 8 years

Question

The initial population of a town is 3000 and it grows with a doubling time 10 years what will the population be in 8 years

Answer 1

2=e^10t

ln2=10t

t=(ln2)/10= annual percent growth rate

pop= 3000e^[8(ln2)/10]= about 5,223 people in 8 years

6000 in 10 years