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Happy Mathematics 1+1 How to make the 50th face in the first volume of Grade 6?
The speed ratio of trucks and buses is 95%: 1 = 19: 20.

At the same time, the departure speed ratio is the distance ratio of the line.

Distance between the two places: 8× 2 ÷ (20-19 )× (20+19) = 624 km.

8×2 is the distance that the bus travels more than the truck when it meets.

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