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The length of A-B railway is 2775 km. Passenger cars and freight cars leave from the two places at the same time. The distance is 555 km in 12 hours. Passenger cars are 90 km per hour. What about freight cars? It is not listed in detail,
Suppose the speed of freight car is x, according to the meaning of the question, the equation is 12 * 90 + 12x + 555 = 2775, and the solution equation is x = 95,
So the speed of the truck is 95 kilometers per hour
The length of the railway between Party A and Party B is 792 km. A passenger train and a freight train run from the two places at the same time. The freight train runs 54 km per hour, and the distance of the passenger train is 54 km per hour
Five sixths of the van. How many hours will the two cars meet?
792÷（54+54×5/6）
=792÷（54+45）
=792÷99
=8 hours
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