Math

How many two block towers can you make from: 1 black block,1 red block, and 1 blue block? Please explain.

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  1. Assuming that the position of the blocks is important, here are the following possibilities. If not, only half are needed.

    Black, red
    Black, blue
    red, black
    red, blue
    blue, red
    blue, black

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  2. i dont get it

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  3. frek

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