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Let's play a game. If I went halfway to a town 60 km away at the speed of 30 km/hour, how ......................

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Let's play a game. If I went halfway to a town 60 km away at the speed of 30 km/hour, how fast do I have to go the rest of the way to have an average speed of 60 km/hour over the entire trip?

posted Oct 1, 2014 by anonymous

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