Answer :
Answer:
72 hours
Step-by-step explanation:
1600/400=4
so 4 x 18= 72 hours
400km=18hrs
1600km=xhrs
4xkmhrs = 288kmhrs
xhrs = 288kmhrs/4km
xhrs = 72 hours
1600km=xhrs
4xkmhrs = 288kmhrs
xhrs = 288kmhrs/4km
xhrs = 72 hours