I What is the missing number in this number sequence pattern?

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The discussion revolves around identifying the missing number (X) in a number sequence pattern presented in an employee assessment. Participants explore mathematical operations such as addition, subtraction, division, and multiplication to find the solution. A proposed solution shows that the pattern holds for the first three rows, leading to the equation 1 + 3 = 5 + X. The conversation emphasizes the importance of not sharing answers that could impact real-life decisions or assessments. Overall, the focus remains on solving the number sequence logically while adhering to ethical guidelines.
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TL;DR Summary
pattern numbers
these are a pattern of number sequence asked in assessment for new employee , what could be the missed number
9 1 6 4
4 5 7 2
5 8 8 5
1 3 5 X

is says the equation could be limited to (addition, subtraction, division and multiplying)
 
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9-6=4-1
4-7=2-5
5-8=5-8
1-5=X-3
X=-1
 
Last edited:
kardo said:
TL;DR Summary: pattern numbers

these are a pattern of number sequence asked in assessment for new employee , what could be the missed number
9 1 6 4
4 5 7 2
5 8 8 5
1 3 5 X

is says the equation could be limited to (addition, subtraction, division and multiplying)
Is the solution unique?

Here is one

9 + 1 = 6 + 4
4 + 5 = 7 + 2
5 + 8 = 8 + 5
1 + 3 = 5 + X
 
Please refrain from posting questions and answers (!) that could affect decisions in real life.

We don't do it in case of car accidents, so we shouldn't do it in the realm of assessments. Furthermore, we do not solve homework questions, of any kind.

Thank you.
 
Seemingly by some mathematical coincidence, a hexagon of sides 2,2,7,7, 11, and 11 can be inscribed in a circle of radius 7. The other day I saw a math problem on line, which they said came from a Polish Olympiad, where you compute the length x of the 3rd side which is the same as the radius, so that the sides of length 2,x, and 11 are inscribed on the arc of a semi-circle. The law of cosines applied twice gives the answer for x of exactly 7, but the arithmetic is so complex that the...

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