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A car is initially 4.0km/h south of a gas station and is moving at a constant speed of 55km/h due north. A truck is initially 6.0km north of the gas station and is moving at a constant speed of 45km/h due south. How far are the vehicles from the gas station when they pass each other?

Formulas:

V=d/t

Attempt at solution:

So I said:

Car

D=4.0km south

V=55km/h north

Truck

D=6.0km north

V= 45km/h south

Now I had the idea of making the times equal,

So I calculated the time for the car:

Tcar= d/v = 4.0/55= 0.073h

Ttruck = d/v = 6.0/45=0.13h

From here I am stuck I tryed subtracting the times, but could get any further. Help from this point would be awesome.

I have done a little diagram attached