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Question

The number of strings on which of these guitars does not represent a factor of 12?

A
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B
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C
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D
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Solution

The correct option is A
We can find the factors of 12 by finding its factor pairs.

The factor pairs of 12 are:
1 x 12 = 12
2 x 6 = 12
3 x 4 = 12
4 x 3 = 12
6 x 2 = 12
12 x 1 = 12

Thus, the factors of 12 are: 1, 2, 3, 4, 6, 12

Hence, among the given options, only 5 is not a factor of 12.

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