Find the missing number in the following question.
$4$ $5$ $6$
$2$ $3$ $7$
$1$ $8$ $3$
$21$ $98$ $?$

94

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76

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73

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16

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Solution

The correct option is A $94$
1st column $= 4^{2} + 2^{2} + 1^{2} = 21$
2nd column $= 5^{2} + 3^{2} + 8^{2} = 98$
3rd column $= 6^{2} + 7^{2} + 3^{2} = 94$

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