Choose the pair which are multiples of 7.

49, 81

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7, 23

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49, 63

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22, 576

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Solution

The correct option is C 49, 63
Multiples are what we get after multiplying the number by an integer (not a fraction).

Here,
$7 \times 7 = 49$
$7 \times 9 = 63$
So, 49 and 63 are the multiples of 7 among the given pairs of options.

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