multiple of 8?

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multiple of 8?

by GhassanMBA » Tue Feb 16, 2010 6:55 am
I was working on a GMATPrep Test and cam across this DS question, had some trouble:

If x and y are positive integers, is xy a multiple of 8?

1) The greatest common divisor of x and y is 10
2) The least common multiple of x and y is 100

The OA is C

Hope someone can help with this,
Thanks
Source: — Data Sufficiency |

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by papgust » Tue Feb 16, 2010 7:41 am

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by GhassanMBA » Tue Feb 16, 2010 10:26 pm
sorry for the redundancy, and thanks for the link