tolong y kak bagaimna cara ny

20 ) Sisa minyak

= 1/4 m3 - ( 7.000 cc + 12 dm3 )

= ( 1/4 × 1000 liter ) - [ ( 7.000 : 1.000 liter ) + 12 dm3 + 15 liter ]

= 250 liter - ( 7 liter + 12 liter + 15 liter )

= 250 liter - 34 liter

= 216 liter

21 ) Waktu

= 08.45 - 06.30

= 2 jam 15 menit

= 2. 15/60 jam

= 2. 1/4 jam

Jarak

= Kecepatan × Waktu

= 16 km/jam × 2. 1/4 jam

= 16 km/jam × 9/4 jam

= 36 km

22 ) Debit

= Volume : Waktu

= 522 liter : 18 menit

= 29 liter/menit