The bus goes from place a to place B, and the truck goes from place B to place a. the two cars leave each other at the same time and meet in 12 hours. After meeting, the bus goes to place B again in 8 hours. After meeting, how many hours does the truck go to place a?

12 △ 12 = 12 △ 23, = 18 (hours). 18-8 = 10 (hours) a: the truck will arrive at Jiadi in another 10 hours

From city a to city B, it takes 12 hours for buses and 10 hours for trucks. Trucks travel 8 kilometers more per hour than buses. How many kilometers do buses travel per hour?

The bus is set to travel x kilometers per hour
10(x+8)=12x
2x=80
x=40
So the bus travels 40 kilometers per hour

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