berapa yah kira kira pliiiiis jawab

[tex]40 \times 40 \times 40 = 64.000cm { }^{3} = 64 \: liter \\ 64 \: l - 33 \: l = 31 \: liter[/tex]
V = 64 liter
air yg harus ditanbahkan = 64 liter - 33 liter = 31 liter (b)