Then 600/40% (1+x) 2 = 2160.

1500( 1+2x+x^2)=2 160

25x^2+50x- 1 1=0

(x+55)(x-5)=0

The solution is x=-55 (it doesn't matter) x=5.

So x=5.

So in 2003:1500 (1+5%) =1575.