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MInh

27/06/2017 at 14:37
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In how many ways can 12 identical balls be put into 5 bags? what if noneof the bag can be empty?



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    Phan Thanh Tinh Coordinator 27/06/2017 at 21:32

    Because you always copy my solution,Tran Nhat Duong

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    Trần Nhật Dương 27/06/2017 at 20:28

    I don't understand meaning of the post



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