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There were 36000 hardbook copies of a cetain novel sold [#permalink]
10 Jun 2003, 19:36
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There were 36000 hardbook copies of a cetain novel sold before the paperback version was issued. From the time the first paperback copy was sold until the last copy of the novel was sold. 9 times as many paperback copies as hardback copies were sold. If a total of 441000 copies of the novel were sold in all, how many paperback copies were sold?