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calculate the avg speed of a complete round trip by a trucker in which the outgoing...

calculate the avg speed of a complete round trip by a trucker in which the outgoing 250 km is traveled at a 95 km/hr and the return 250 km is traveled at 55 km/hr
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Answer #1

where t1 is the time for the outgoing journey and t2 is the time for the return journey.

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