logic I'm completely stuck on this logic problem, which was on a school test given by my 8th grade math teacher, who I assume wrote the problem. Can anyone help me understand it? I have tried to figure out the sticks and circles logic, but to no avail. I'd be grateful if anyone could show me how this is done, and if there is a resource to learn about this style of problem.

P.S.-The test was graded and returned (so I'm not cheating). I just didn't get the right answer, and I'm curious to figure out what it might be.

  • 1
    $\begingroup$ I've put this on hold because we have a rule that puzzles you didn't make yourself need to be accompanied by a full explanation of where they're from. My apologies for the fact that the notice says "off-topic"; of course this isn't at all off-topic. (There are rather silly technical reasons why this is lumped in with actual off-topic-ness.) Once you've told us where the question is from it can probably be reopened. $\endgroup$
    – Gareth McCaughan
    Oct 19, 2019 at 20:37
  • $\begingroup$ actually, no I don't know the answer. the two circles should be "3" by my reckoning. :( this could be a mistake in the puzzle. $\endgroup$
    – Jasen
    Oct 19, 2019 at 20:42
  • $\begingroup$ Ok. Added source to the best of my ability. $\endgroup$
    – Abcderia
    Oct 19, 2019 at 20:46
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    $\begingroup$ The number associated is counting the lines and intersections, hence B.=7 is the correct answer. $\endgroup$
    – ThomasL
    Oct 19, 2019 at 22:36
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    $\begingroup$ The answer is the total number of objects + intersections - number of circles. $\endgroup$ Oct 19, 2019 at 23:23

1 Answer 1


It is the number of straight lines added to the number of intersection points which is 7


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