SOLUTION: the nine numbers 49,51,53,53,55,57,57,59,61 are placed one per square in the grid so that each row, column and diagonal adds up to the same number (3 by 3 square). this number is c

Question 1098660: the nine numbers 49,51,53,53,55,57,57,59,61 are placed one per square in the grid so that each row, column and diagonal adds up to the same number (3 by 3 square). this number is called the magic sum of this magic square. the magic sum is
Answer by greenestamps(13203) (Show Source): You can put this solution on YOUR website!

The sum of all 9 of the numbers is 495. If the numbers in each row have to have the same sums, then the sum in each row has to be 495/3 = 165.

And then that has to be the sum in each column and on each diagonal also.

So the magic sum is 165.
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