When the two vehicles catch up, the distance traveled by them will be equal. We also know that:
distance = velocity * time
Let us say that the car has traveled for time t hours. Thus, the bus will have traveled for t + 1.5 hours:
For the car:
s = 60t
For the bus:
s = 40(t + 1.5)
Equating:
60t = 40(t + 1.5)
20t = 60
t = 3 hours
The distance traveled in this time will be:
s = 60 * 3
= 180 miles
The vehicles will be 180 miles from Freetown.
