Answer:
[tex]3 \: years \\ 30000 \times 0.97 \times 0.97 \times 0.97 = 27380.19 \\ 2 \: year \\ 30000 \times 0.97 \times 0.97 = 28227 \\ 1\: year \\ 30000 \times 0.97 = 29100[/tex]
