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A train, starting at noon, travels north at 40 ml per hr. Another train, starting from the same poi…
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A train, starting at noon, travels north at 40 ml per hr. Another train, starting from the same point at 2 P.M., travels east at 50 mi. per hr. Find, to the nearest mile per hour how fast the 2 trains are separating at 3 P.M.
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