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- Math problems in the first day of junior high school
Math problems in the first day of junior high school
According to the meaning of the question, it can be assumed that the speed of the bus is 5x and the speed of the train is 3x.
(5x+3x)* 10=200+280
X=6
So: the speed of the bus is 30 meters per second.
The train speed is18m/s.
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