the distance between two station A and B 310 kilometre to motorcycle is start from A and B in the opposite direction and the distance between them after 4 hours is 30 km if the speed of metrologist is less than of other by 10 kilometre per hour find the speed of each motorcycle
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so, the speed of 1st motorcycle is x=40
and the 2nd motorcycle x-10=40-10=30
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