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Tuesday, March 24, 2009

Find the Pattern in the Numbers

What number should logically replace the question mark?

7
17
8 1/2
14 1/4
10
11 1/2
?

Sorry about the formatting.  I don't know how to get 1/2 to look right.  To be clear, if I was using decimals, the third number is 8.5, then the next number is 14.25.
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7 comments:

  1. sadeesh3/24/2009 9:27 AM

    ans is 11 1/2

    7 + 1.5 = 8 1/2 ; 17 - 2.75 = 14.25
    8.5 + 1.5 = 10 ; 14.25 - 2.75 = 11.5
    10 + 1.5 = 11.5 ;

    ReplyDelete
  2. Anonymous3/25/2009 7:30 AM

    To make ¼, ½, and ¾ press and hold the ALT key and press 0188, 0189, or 0190 respectively on the NUMBER pad of the keyboard.

    ReplyDelete
  3. Unknown3/25/2009 8:46 AM

    Very cool, thanks Howie!

    The answer is 11½. The pattern is skipping every other number, so that it goes 7, 8½, 10, 11½; and the other pattern is heading down, 17, 14¼, 11½, ...

    ReplyDelete
  4. Anonymous2/16/2010 10:38 AM

    Find a pattern
    1
    11
    21
    1211
    111221
    312211
    13112221
    ……………

    ReplyDelete
  5. Unknown2/16/2010 6:59 PM

    Hi Anonymous,
    I love that one (http://www.questionotd.com/2005/10/what-should-next-row-be.html).

    Have any others?

    ReplyDelete
  6. Anonymous10/11/2010 12:32 PM

    Anyone able to solve this pattern?
    3
    11
    20
    27
    29
    23
    ?

    ReplyDelete
  7. Anonymous4/11/2011 10:30 PM

    what is the rule of this pattern?:

    1
    1 1/4
    1 3/4
    2 1/2

    ReplyDelete

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