jawab no 17 pake cara

15 liter / 30 menit x 2/2 = 30 liter / 60 menit = 30 liter/jam (D)

waktu= 30 menit= 0.5 jam
debit= v/w
debit= 15 liter / 0.5 jam
debit= 30 liter/jam