tolong jawab sama caranya

18.) k = 50km/jam
w = 300menit =300/60jam =5 jam
j= .. ?
J = K × W
= 50 × 5
=150 km.

19.)w= 30 menit
v=1.200 l
d=...?
D = V / W
= 1.200 / 30
= 40 liter/ menit