Sebanyak 25 liter air dialirkan ke dalam bak selama 15 menit debit...dm/jam

debit
= volume : waktu
= 25 L : 15 menit
= 25 dm^3 : (15:60) jam
= 25 dm^3 : 1/4 jam
= 25 x 4/1 dm^3/jam
= 100 dm^3/jam