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If the symbol # represents either addition, subtraction

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If the symbol # represents either addition, subtraction [#permalink] New post 26 Sep 2010, 10:46
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74% (01:21) correct 26% (00:27) wrong based on 57 sessions
If the symbol # represents either addition, subtraction, multiplication, or division, what is the value of 6#2?

(1) 10#5 = 2
(2) 4#2 = 2
[Reveal] Spoiler: OA
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Re: Symbol Problem [#permalink] New post 26 Sep 2010, 11:01
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If the symbol # represents either addition, subtraction, multiplication, or division, what is the value of 6#2?

(1)10#5 = 2 --> # can only be division, hence 6#2=6/2=3. Sufficient.

(2) 4#2 = 2 --> # can be either division or subtraction: if it's division then 6#2=6/2=3 but if it's subtraction then 6#2=6-2=4. Two different answers, not sufficient.

Answer: A.
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Re: Symbol Problem [#permalink] New post 26 Sep 2010, 11:22
I do not think this to be 600-700 level question.

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Re: Symbol Problem [#permalink] New post 16 Oct 2010, 07:09
this is a tricky one...
Re: Symbol Problem   [#permalink] 16 Oct 2010, 07:09
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