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The operation* represents either addition, subtraction, or

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The operation* represents either addition, subtraction, or [#permalink] New post 23 Jan 2010, 00:25
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38% (01:39) correct 61% (00:25) wrong based on 0 sessions
9
The operation* represents either addition, subtraction, or multiplication of integers,
what is the value of 1*0?
(1) 0*2=2
(2) 2*0=2

OA is
[Reveal] Spoiler:
a


Why cant the OA is D because using statement II we get the same answer and we can use that to solve 1*0.
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Re: Symbols [#permalink] New post 23 Jan 2010, 01:35
vaivish1723 wrote:
9
The operation* represents either addition, subtraction, or multiplication of integers,
what is the value of 1*0?
(1) 0*2=2
(2) 2*0=2

OA is
[Reveal] Spoiler:
a


Why cant the OA is D because using statement II we get the same answer and we can use that to solve 1*0.


(1) 0*2=2 --> operation * represents addition --> 1*0=1+0=1. Sufficient.

(2) 2*0=2 --> operation * represents either addition or subtraction --> 1*0=1+0=1 and 1*0=1-0=1, the same answer. Sufficient.

Answer: D.

OA must be wrong.
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Re: Symbols [#permalink] New post 23 Jan 2010, 10:37
I also chose the ans as D
what is the source
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Re: Symbols [#permalink] New post 26 Jan 2010, 10:01
OA is wrong..should be D only.

Lots of OA wrong these days.
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Addition / Substraction [#permalink] New post 04 Nov 2010, 16:33
The operation* represents either addition, subtraction, or multiplication of integers,
what is the value of 1*0?
(1) 0*2=2
(2) 2*0=2




I think it's D but that's not OA.
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Re: Addition / Substraction [#permalink] New post 04 Nov 2010, 18:57
Merging similar topics.

OA for this question is wrong. Answer must be D.
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DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS ; 9 Devil's Dozen!!!; 10 Number Properties set. NEW!!!


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Re: Symbols [#permalink] New post 05 Jan 2011, 15:31
It is a tricky question. In B. + or - is does not change the answer of the question

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Re: Symbols   [#permalink] 05 Jan 2011, 15:31
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