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 What is the question mark?

 Aug 26, 2018
 #1
avatar+391 
+2

After extensive guessing and checking, I found out that the first column and third column both had a sum of \(15\), which means that the second column had a sum of \(15\), also. 

 

\(15 - (8+1) = 15 - 9 = 6\), so \(? = 6\).

 

- Daisy

 Aug 26, 2018
 #2
avatar+100529 
+2

Daisy is correct !!!!...[ the sum of each row  is also 15...if the missing number is 6  ]

 

 

cool cool cool

 Aug 26, 2018

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