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Thread: Cubes...

  1. #1
    Expert Member
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    Jun 2006
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    410

    Cubes...

    There is a 4 inch cube painted on all sides. This is cut down into of 1 inch cubes. What is the no of cubes which have no pointed sides.


    -- James.


  2. #2
    Junior Member
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    Sep 2006
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    Re: Cubes...

    I think there is only one cube with no pointed sides.Is my finding correct?


  3. #3
    Expert Member
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    Jun 2006
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    410

    Re: Cubes...

    No. the answer is 8.

    Formula to find the result is (N-2)^3 where N is number of cubes in one side.

    In this cas N is 4.

    -- James


  4. #4
    Junior Member
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    Sep 2006
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    23

    Re: Cubes...

    Thanks for your detailed explanation. I could get the approach easily now.


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