Mathematics, 22.10.2020 07:01 stdntlogin3206

For 20 POINTS!! A train goes from Springfield, MA to Boston at a speed of 40 mph. On the return journey it moves at a speed of 80 mph. If the return journey takes an hour less than the outward journey, what is the average speed overall of the train?

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For 20 POINTS!! A train goes from Springfield, MA to Boston at a speed of 40 mph. On the return jour...

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