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 Post subject: "whether" vs. "whether or not"
 Post Posted: Sun Jan 15, 2012 11:55 pm 
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Is the expression "whether or not" ever correct in GMAT sentence correction or would the more concise "whether" always be preferable as a rule of thumb.

for a concrete example, would it be correct to choose "whether" in the example below? or would that change the intended meaning of the sentence?

You cannot multiply/divide an inequality by a variable unless you know the sign of that variable because you need to know whether or not to switch the direction of the inequality symbol.

(a) whether or not
(b) whether


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 Post subject: Re: "whether" vs. "whether or not"
 Post Posted: Mon Jan 16, 2012 1:01 am 
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generaly "whether" covers both situations when we have only two alternative like YES or NO. whether is correct choice


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 Post subject: Re: "whether" vs. "whether or not"
 Post Posted: Mon Jan 30, 2012 11:34 pm 
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ManhattanGMAT Staff


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h.harpreet wrote:
generaly "whether" covers both situations when we have only two alternative like YES or NO. whether is correct choice


Yes, correct! "whether or not" is generally seen as redundant for this very reason.

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Jamie Nelson
ManhattanGMAT Instructor


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