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Verified answer
V Balok = p x l x tV balok = 100 cm x 70 cm x 80 cm
V balok = 560.000 cm3
V balok = 560 liter.
560 liter : 28 liter/menit = 20 menit.
Maka 60/20 = 0,3 jam.
= 100 x 70 x 80
= 560.000 cm³
= 560 dm³
= 560 ltr
debit air = 28 ltr/menit
waktu yang dibutuhkan utk memenuhi bak = 560 / 28
= 20 menit
semoga jelas dan membantu ya