How to Convert and add numbers

Question

2001, the population in a town was 8% more than it was in 2000. If the population was 27,930 in 2002, which was 10% more than 2001, find the population in 2000

Answer 1

27,930 =1.1p

p= 27930/1.1=25,390.090909... in 2001

P= 25,390.090909.../1.08 =23,510.1010... in 2000

Population = about 23,510 in 2000

8% of 23,510 = .08(23,510)=1880.8

23510+1880.8= 25390.8

10% of 25390.8= 2539.08

25390.8+2539.08 = 27929.88

= about 27,930 in 2002