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Monday, April 06, 2009

Those Question Marks Need to be Removed

What number should logically replace the ?
4 5 9 4 2
8 6 2 6 4
2 3 ? 2 7
7 1 2 3 5
3 8 3 6 2
at

4 comments:

  1. Jeff4/06/2009 5:02 PM

    6?

    ReplyDelete
  2. sadeesh4/07/2009 7:52 AM

    Counting columns

    2+4+7+5+2 = 20
    4+6+2+3+6 = 21
    9+2+?+2+7 should be 22
    5+6+3+1+8 = 23
    4+8+2+7+3 = 24

    solving 9+2+?+2+7 = 22
    ? = 6

    ReplyDelete
  3. sadeesh4/07/2009 7:53 AM

    Counting columns

    2+4+7+5+2 = 20
    4+6+2+3+6 = 21
    9+2+?+2+7 should be 22
    5+6+3+1+8 = 23
    4+8+2+7+3 = 24

    solving 9+2+?+2+7 = 22
    ? = 6

    ReplyDelete
  4. Al6/06/2009 3:22 AM

    yep. 6!

    ReplyDelete

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