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

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

Hence, there was population of 22808 in 2000.