Random cryptic question (don't know reason for answer)

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

888

• 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. – Rubio Jun 12 '17 at 1:01
• The above equation, $X/3=X$, doesn't make much sense. $X/3=x$ was probably intended. – Nat Jun 12 '17 at 4:17
• here is the source : iqhaven.com/mytests1/lensatest_iqtest/lensatest_iqtest.htm – Jamal Senjaya Jun 12 '17 at 6:15
• Well, it was nice of OP to adhere to the "No discussing with others or posting your solutions elsewhere" rule, wasn't it? :/ – Rubio Jun 12 '17 at 9:55

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.

• for the right equation: X is the 24th letter of the alphabet – ffao Jun 12 '17 at 1:57
• 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 – Talal_Sharaa Jun 12 '17 at 5:59
• 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? – M Oehm Jun 12 '17 at 6:40
• @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.... – Talal_Sharaa Jun 12 '17 at 6:45