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Source: Princeton Review
If 6 is a factor of a and 21 is a factor of b, is ab a multiple of 70?
1) a is a multiple of 4
2) b is a multiple of 15
The OA is B
If 6 is a factor of a and 21 is a factor of b, is ab a multiple of 70?
1) a is a multiple of 4
2) b is a multiple of 15
The OA is B
