Got a random question from an online iq test that I don't understand. Can someone help me out? Here's the question: enter image description here

The answer is


  • $\begingroup$ Welcome to Puzzling! (Take the Tour!) For content that is not your own, please provide attribution. Using someone else's content without (at minimum) disclosing where it came from is plagiarism, and such posts are deleted. Also, the no-computers tag seems random and inapplicable - you should probably edit it to a better one. $\endgroup$
    – Rubio
    Jun 12, 2017 at 1:01
  • $\begingroup$ The above equation, $X/3=X$, doesn't make much sense. $X/3=x$ was probably intended. $\endgroup$
    – Nat
    Jun 12, 2017 at 4:17
  • $\begingroup$ here is the source : iqhaven.com/mytests1/lensatest_iqtest/lensatest_iqtest.htm $\endgroup$ Jun 12, 2017 at 6:15
  • 1
    $\begingroup$ Well, it was nice of OP to adhere to the "No discussing with others or posting your solutions elsewhere" rule, wasn't it? :/ $\endgroup$
    – Rubio
    Jun 12, 2017 at 9:55

1 Answer 1


The answer is quite simple:

For the triangle:

Inside the Equilateral triangle there are two letters
E = 5 & L = 12 so they both form the number 512
The Equilateral triangle has 3 equal sides
X represent each side so the question is asking us to find the answer to the equation X^3 = 512
And the answer is X = 8
So XXX = 888

For the equation to the right:

X is the 24th letter in the alphabet
So 24/3 = 8
Thanks @ffao for pointing that out.

  • $\begingroup$ for the right equation: X is the 24th letter of the alphabet $\endgroup$
    – ffao
    Jun 12, 2017 at 1:57
  • $\begingroup$ KMS you are welcome, @ffao Thanks a lot, I got confused because They would have changed the font of X, but yeah you are right $\endgroup$ Jun 12, 2017 at 5:59
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    $\begingroup$ That's porobably it, but it's too cryptic for its own good. The area of an equilateral triangle is √3 ∕ 4 x² ≈ 0.433 x². Shouldn't the EL rather be inside a cube? $\endgroup$
    – M Oehm
    Jun 12, 2017 at 6:40
  • $\begingroup$ @MOehm Yeah, If we are talking about a better question then it would be better to put the EL inside a cube and change certain X's to lower case.... $\endgroup$ Jun 12, 2017 at 6:45

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