Answer: There was population of 22808 in 2000.
Explanation:
Since we have given that
Population was in 2002 = 25,570
According to question, the population in 2002 was 10% more than 2001.
So, the population in 2001 was
![25570=P_1(1+(r)/(100))\\\\25570=P_1(1+(10)/(100))\\\\25570=P_1(1+0.1)\\\\25570=P_1(1.01)\\\\(25570)/(1.01)=P_1\\\\25316.8\approx 25317=P_1](https://img.qammunity.org/2020/formulas/mathematics/college/ov5kjaz9p6haqeui2cn4bh69dq7j1s2vuc.png)
Now, we have given that
In 2001, the population in a town was 11% more than it was in 2000.
So, population in 2000 was
![25317=P_0(1+(r)/(100))\\\\25317=P_0(1+(11)/(100))\\\\\25317=P_0(1+0.11)\\\\25317=P_0(1.11)\\\\P_0=(25317)/(1.11)\\\\P_0=22808](https://img.qammunity.org/2020/formulas/mathematics/college/6hh7kys4j8b5vkg0nawpksgo2t2xmj2aqe.png)
Hence, there was population of 22808 in 2000.