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19 October, 19:25

Seen previously. Kim has $10$ identical lamps and $3$ identical tables. How many ways are there for her to put all the lamps on the tables?

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  1. 19 October, 19:41
    0
    One lamp on each table I believe
  2. 19 October, 19:44
    0
    Only the number of lamps on each table matters, so we can list the possibilities systematically: / begin{align*}

    (&10,0,0) / /

    & (9,1,0) / /

    & (8,2,0) / /

    & (8,1,1) / /

    & (7,3,0) / /

    & (7,2,1) / /

    & (6,4,0) / /

    & (6,3,1) / /

    & (6,2,2) / /

    & (5,5,0) / /

    & (5,4,1) / /

    & (5,3,2) / /

    & (4,4,2) / /

    & (4,3,3)

    /end{align*}There are a total of $/boxed{14}$ possibilities.
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