4
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As stated in the title, what does the "?" stand for? If you want me to clarify something or if you want additional information, let me know. But this should be sufficient.

-30 04 50 = 16

-10 16 40 = 15

23 57 73 = ?

HINT 1:

It's meant to say 04 and not just 4.

HINT 2:

Separate the 3 numbers to the left(of the equal sign) into two parts.

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5
  • $\begingroup$ JMP, I wouldn't call this a number sequence though. It could be misleading. More of a number-puzzle $\endgroup$ Commented Nov 18, 2019 at 7:14
  • $\begingroup$ Let me know if you want hint 2 $\endgroup$ Commented Nov 18, 2019 at 9:44
  • $\begingroup$ This was probably harder than I thought, so I'll give you hint 2. $\endgroup$ Commented Nov 18, 2019 at 10:47
  • $\begingroup$ Well, I could do 50-34-00=16 and 40-16-11=15 with just mixing numbers (same way for both columns) $\endgroup$
    – Jan Ivan
    Commented Nov 18, 2019 at 11:57
  • $\begingroup$ Ok. You could do that, but that's not the right approach to this problem. Mixing the numbers up, I mean. They are fixed. $\endgroup$ Commented Nov 18, 2019 at 13:10

1 Answer 1

6
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The second hint was helpful.

The numbers are coordinates.

Once you see things that way, it is not hard to see the relationship between the left and right side of the equality sign.

The number to the right is the area of the triangle given by the coordinates.

The answer:

10

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