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If j is a multiple of 12, and k is a multiple of 21, then jk must be a multiple...

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by BTGmoderatorLU » Wed Jul 01, 2020 5:45 am

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Source: Princeton Review

If j is a multiple of 12, and k is a multiple of 21, then jk must be a multiple of which of the following?

A. 8
B. 15
C. 22
D. 28
E. 35

The OA is D
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