Question
Find the missing number, if a certain rule is followed either row-wise or column-wise.
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Answer
$(A): $ The rule followed is: $4 + 37$ and $7 \times 7 = 49;$
$2 + 7 - 9$ and $9 \times 9 = 81$
So, $9 + 10$ and $10 \times 10 = 100$
$2 + 7 - 9$ and $9 \times 9 = 81$
So, $9 + 10$ and $10 \times 10 = 100$
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