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# Que:- If X and Y are positive intergers what is the value of

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Intern
Joined: 30 Jun 2008
Posts: 4
Que:- If X and Y are positive intergers what is the value of [#permalink]

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23 Aug 2008, 07:59
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Que:- If X and Y are positive intergers what is the value of XY?

a) The greatest common factor of X and Y is 10.

b) The Least common multiple of X and Y is 180.

OA - C

I marked this answer correctly in the test but it was kind of educated guess. Can someone please explain me how to solve this problem.

Thanks
Prashi82

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Intern
Joined: 16 Feb 2006
Posts: 30
Location: ZURICH
Re: Gmat prep - DS question - GCF/LCM [#permalink]

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23 Aug 2008, 08:27
Hi,

If LCM of two numbers X and Y is A
and HCF of these two numbers is B

then X x Y = A x B

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If you would like to discuss this question please re-post it in the respective forum. Thank you!

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Re: Gmat prep - DS question - GCF/LCM   [#permalink] 23 Aug 2008, 08:27
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