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# PS: Easy DP

Author Message
Manager
Joined: 28 May 2009
Posts: 154
Location: United States
Concentration: Strategy, General Management
GMAT Date: 03-22-2013
GPA: 3.57
WE: Information Technology (Consulting)

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23 Jun 2009, 14:47
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a, b, c are positive integers greater than 1. If $$a<b<c$$ and $$abc = 663$$, what is $$c-b$$?
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Manager
Joined: 16 Apr 2009
Posts: 219
Schools: Ross

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23 Jun 2009, 17:55
663=3*x
221==>7*3=21+20*10=200==>221
==>17*13=221
17*13*3=663 ==>17-13=4
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Re: PS: Easy DP   [#permalink] 23 Jun 2009, 17:55
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