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Maths

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I was given a question on number patterns. The queston states tha I must keep adding one table to increase the amount of seatings by keeping it in a square formation. I need to giv a general formula but I am struggling with the sequence

  • Maths - ,

    Hmm. Not sure just what's wanted, but recall that

    (n+1)^2 = n^2+2n+1
    so, if after each increase there are

    n^2+2n tables, then you need to add 1 more to keep it a perfect square.

    So, the sequence would be

    3,7,15,24,35,...

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