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Posted by on Wednesday, October 26, 2011 at 10:58pm.

Which of the following can be the average(arithmetic mean ) of four consecutive positive even integers?

  • math - , Thursday, October 27, 2011 at 12:39am

    The integers are

    n-2 n n+2 n+4

    sum = 4n+4
    average = n+1

    which is in between the two middle integers. So, since n is even, n+1 must be odd.

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