Q.

In a “magic square”, the sum of the numbers in each row, in each column and along the diagonals is the same. Is this a magic square?

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Detailed Solution

Along the first row: 411+911+211=1511

Along the second row: 311+511+711=1511

Along the third row: 811+111+611=1511

Along the first column: 411+311+811=1511

Along the second column: 911+511+111=1511

Along the third column: 211+711+611=1511

Along the first diagonal: 411+511+611=1511

Along the second diagonal: 811+511+211=1511

Yes, it is a magic square as the sum of numbers in each row, column and diagonal is same.

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