# Math

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The Prevu Theater keeps a set of five counterweights to help stagehands move heavy props. The weights can balance exactly any load that is a multiple of 10 kg, from 10 kg up to a total of the five weights. Give the masses of weights which meet these conditions and allow the stagehands to counterbalance the maxium possible load.

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I'm sorry, but I don't understand...

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The answer is 10, 20, 40, 80, and 160.

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