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ds 500 section10 #20

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dunkin77 Master | Next Rank: 500 Posts Default Avatar
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ds 500 section10 #20

Post Wed Apr 18, 2007 1:02 pm
20. Is the positive integer n a multiple of 24?
(1) n is a multiple of 4.
(2) n is a multiple of 6.




Hi,

I though the answer was E) but actually the correct answer is E) -- Can anyone explain why?

Thanks!

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dunkin77 Master | Next Rank: 500 Posts Default Avatar
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Post Wed Apr 18, 2007 2:13 pm
Sorry!

I was going to say "I thought the answer is C) but the correct answer is E) "

I now understand the reason clearly. Smile

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dsouzamel Newbie | Next Rank: 10 Posts Default Avatar
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Target GMAT Score:
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Post Wed Apr 18, 2007 1:15 pm
20. Is the positive integer n a multiple of 24?
(1) n is a multiple of 4.
(2) n is a multiple of 6.


Lets assume n to be 12 ..

12 is divisible by 4
12 is also divisible by 6 but it isn't divisible by 24.

So the best answer is E......... Very Happy

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isisalaska Community Manager Default Avatar
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Post Wed Apr 18, 2007 1:04 pm
what is the right answer? D?

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Isis Alaska

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