jelaskan cara mengerjakannya

K = m/v = 88/80 = 1.1
L =m/v = 200/200 = 1
M = m/v = 24/30 = 0.8
N = m/v = 72/80 = 0.9
maka tekanan hidrostatis terbesar : K
tekanan hidrosatatis terkecil : M
jawaban : C