If Vs Whether : GMAT Sentence Correction (SC)
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If Vs Whether

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07 Nov 2013, 09:56
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Can somebody explain when to use If and when to use whether

like in question

This decade has seen no end to the controversy over if state-run day care centers are a necessary response to changes in employment patterns

if is not correct , whether is right option among answers
If you have any questions
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07 Nov 2013, 13:17
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"If" is used in the GMAT in Conditionals only. If you see "if" in a sentence and there's no condition, you should find an answer choice that uses "whether."

Example:
Incorrect:Michael did not know if Margaret was going to come.
Correct: Michael did not know whether Margaret was going to come.

Use "whether" when there is a choice between two possibilities dealing with the same subject.

Example: Jane is not sure whether she should change her job (or not).

"Or not" after "whether" is redundant.

Example:
Incorrect: Jane is not sure whether John is making dinner tonight or not.
Incorrect: Jane is not sure whether or not John is making dinner tonight.
Correct: Jane is not sure whether John is making dinner tonight.
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09 May 2014, 08:16
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I learned this from somewhere - to test whether usage of 'if' is correct, do a simple test.
Flip the sentence to a format of 'If..then..' statement - it it makes sense, it will be the right answer..

for example:
This decade has seen no end to the controversy over if state-run day care centers are a necessary response to changes in employment patterns

Inverting to 'if then' format looks like:
if state-run day care centers are a necessary response to changes in employment patterns [then] this decade has seen no end to the controversy over..

This actually doesnt make sense..

hope it helps..!!
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13 Sep 2014, 01:36
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Mahmud6 wrote:
Which one is correct?
Whether.........or..........; whether x or y
Whether.........and........; whether x and y

Depends on the context
Whether A and B should go to the party..Both should attend or not
Whether A or B should go to the party..Which of them should attend
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07 Nov 2013, 10:35
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wastedyouth wrote:
Can somebody explain when to use If and when to use whether

like in question

This decade has seen no end to the controversy over if state-run day care centers are a necessary response to changes in employment patterns

if is not correct , whether is right option among answers

"If" is generally used for reasoning .. If/ then type of sentences... If this happens then this will happen.
Eg- If you finish your work by Five, you can leave early

and for Hypothetical sentences
Eg- If i work hard, I may get a good score in GMAT

"Whether" is used when we have choice between two options.
Eg-I need to decide whether i should Call her for the movie
I dont know whether i should study or go on my friends birthday
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09 May 2014, 05:55
wastedyouth wrote:
Can somebody explain when to use If and when to use whether

like in question

This decade has seen no end to the controversy over if state-run day care centers are a necessary response to changes in employment patterns

if is not correct , whether is right option among answers

Visit here to get a PhD on usage of Whether..
http://magoosh.com/gmat/2012/gmat-sente ... s-whether/
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13 Sep 2014, 00:59
Which one is correct?
Whether.........or..........; whether x or y
Whether.........and........; whether x and y

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10 Nov 2015, 18:12
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10 Nov 2015, 18:34
Here is the rule from GMATPREP.

IF - Use "IF" for condition statement.
WHETHER - Use "Whether" to show two possible alternatives.

How we will know whether to use "IF" or "Whether"?

A conditional statement can be reversed.

For example: If you prepare well for gmat, Then you will score 700 plus.
You will score 700 plus, If you prepare well for GMAT. --> Makes sense. Hence usage of "IF" is correct here.

Example 2: Ram doesn't know WHETHER he will get a good score in GMAT.
Ram doesn't know IF he will get a good score in GMAT.--> Replacing "Whether" with "If"
IF he will get a good score in GMAT, then Ram doesn't know --> Reversing the order doesn't make sense. Hence usage of "Whether" is correct.

Use the reversing technique to determine whether to use "IF".
If Vs Whether   [#permalink] 10 Nov 2015, 18:34
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