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IQ like pattern question

  1. Jul 2, 2008 #1
    The attachment is from an IQ like test. The last third or so of the test was quite hard. I look over the questions after the test, just for curiosity and still cant figure some out.

    Any ideas on what is going on here?
     

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  3. Jul 3, 2008 #2

    James R

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    I think I'd go for number 5, but I'll wait and see whether anybody agrees or not.
     
  4. Jul 3, 2008 #3

    Evo

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    That was it? No instructions, no way to get a hint from other problems in the section?

    It's a bit blurry, but #2 seems identical to the last picture, unless a clearer shot shows some difference, and #5 is rotated counter clockwise from the first picture.

    It also looks like #2 and the first may have one doted line, so #2 is reversed. Hard to tell.

    Can you post the context of this example?
     
  5. Jul 3, 2008 #4
    Is there some reason it tells me that I don't have permission to view the attachment?
     
  6. Jul 3, 2008 #5

    Evo

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    You can't even see the thumbnail?
     
  7. Jul 3, 2008 #6
    I think I'd go for number 5, but I'll wait and see whether anybody agrees or not.

    That is what I picked too. I dont know if its right. Actually I dont know why I even picked it... I couldnt consciously find a pattern, so I just picked the one that 'felt' right.

    Can you post the context of this example?

    I think this is a Mensa pre-test, but Im not sure. The entire test was only pictures like these. Some were quite easy...

    The exact instructions were this

    Find the pattern.

    Which of the multiple choice options finishes the sequence.

    Through out the rest of the test, they will be listed as options 1 2 3 4 5 6 7 and 8.


    It was a 36 question test which I had 1 hour to finish.



    I hope somebody can explain the pattern, Im dying to know! I have a few others I would like help on too, if somebody can get this one first.
     
  8. Jul 3, 2008 #7
    Click on the image and click on the logout option. Then log back in and click on the image again.

    I chose #5 as well reasoning as follows: The images in the center, north, and northeast all have 5 line segments that reach the boundary of the square. (I count the central vertical line in north as two line segments reaching from the intersection point to the edges). The images in the east, west, and southwest all have 3 line segments that reach the boundary of the square. The remaining two images in the northwest and south both have 4 line segments that do not reach the boundary of the square. I conjecture that southeast should also have 4 line segments that do not reach the boundary in order to make three sets of three. In that case, the only two candidates are 2 and 5. I chose 5 simply because 2 is a duplicate of south and there are no other duplicates.
     
  9. Jul 3, 2008 #8

    Evo

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    But he said the instructions say to find the "sequence" I don't see how #2 or #5 fit a "sequence".

    What is so stupid about these so called IQ tests is that the more brilliant you are, the more likely you are to find a more ingenious answer than the test maker ever thought of. :rofl: It's a game of guessing what the test writer was thinking.

    Is a moose more like a grape or a turnip?
     
  10. Jul 4, 2008 #9
    A suggestion:

    The object of the puzzle may be to form three groups of three out of the square figures with the following two rules:

    1. in each group, a figure shares at least two lines (when superposed) with another. The images with "short lines" are to be imagined extending to the edges of the containing square for the application of this rule.

    2. in each group, there is 1 figure with short lines.

    Following this, this leaves 5 as the only valid answer.

    I'm hesitant to say that's the correct reasoning because "at least two lines" is a weak pattern.
     
    Last edited: Jul 4, 2008
  11. Jul 4, 2008 #10

    arildno

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    That's my view, too
    Grape, obviously.
     
  12. Jul 4, 2008 #11

    DaveC426913

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    I have tried this and still do not have permissions.
     
  13. Jul 4, 2008 #12

    Evo

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    We were separated at birth, I knew it. :smile:
     
  14. Jul 5, 2008 #13
    I chose the same with more or less the same reasoning but had some suspicions that it may have to do with trig (which I am not familiar with) and some sort of 'value' of the triangles or angles.
     
  15. Jul 5, 2008 #14

    DaveC426913

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    Why can I see the thumbnail when logged out but not when logged in?
     
  16. Jul 5, 2008 #15
    I haven't looked at an attached pic in a while. It seems Greg has changed it into some sort of java thing. Maybe your browser is having a problem the java and the java is not enable for guests?
     
  17. Jul 16, 2008 #16
    Number 6.
     
  18. Jul 23, 2008 #17
    Ok, heres a few thoughts.

    A B C
    D E F
    G H I
    -------
    1 2 3 4
    5 6 7 8

    Everything seems to be small modifications of squares A and H.

    B is H enlarged to fill the square, and with an extra line segment.

    C is A rotated 90 degrees, enlarged, and with an extra line segment.

    D is A enlarged, missing a line segment.

    E is A enlarged, with an extra line segment.

    F is H enlarged, missing a line segment.

    G is anomalous, although it is very similar to 8.


    One thing to notice is that nothing repeats exactly (enlarged or rotated) without a segment removed or added. If that holds, it would rule out answers 2, 4, 5, and 6, since those are all the same as shapes already there (just rotated or scaled).

    Another thing to notice is that all vertices where 2+ edges meet are either on the side of the box or in the exact center. If that holds, it would rule out answer 1.

    A third thing to notice is that edges that eminate from the sides of the box all terminate in either the center or another side. It that holds, it would rule out answer 7 (the one with the weird "hole" missing) .

    This leaves 3 and 8, and if I had to hazard a guess between the two, I'd say 8, just to add another small one in the mix, and because it is similar to G which doesnt fit with any of the other small ones.
     
    Last edited: Jul 23, 2008
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