<PRE><B>Question 429103</B>
If our bus is traveling at 60 mph, then X/60 is the amount of the distance covered by the bus before the two vehicles meet, per hour.  Similarly, X/40 is the amount of the converging distance covered by the car.  Therefore, we have:

X/60 + 1.5 = X/40

Multiplying through by 240, we get;

4X + 360 = 6X
360 = 2X
180 = X

Since our distance is 180 miles, the amount of time traveled by the bus is 180 miles / 60 miles/hour, or 3 hours.  The bus has been traveling for 3 hours, the car has been traveling for 4.5 hours:

180=180.
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