GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 10 Dec 2018, 20:37

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

## Events & Promotions

###### Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
• ### Free lesson on number properties

December 10, 2018

December 10, 2018

10:00 PM PST

11:00 PM PST

Practice the one most important Quant section - Integer properties, and rapidly improve your skills.
• ### Free GMAT Prep Hour

December 11, 2018

December 11, 2018

09:00 PM EST

10:00 PM EST

Strategies and techniques for approaching featured GMAT topics. December 11 at 9 PM EST.

# Reading reports and comparing statistical analyses, authorities gather

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 51072

### Show Tags

17 Jun 2018, 20:13
00:00

Difficulty:

35% (medium)

Question Stats:

61% (01:17) correct 39% (01:42) wrong based on 154 sessions

### HideShow timer Statistics

Reading reports and comparing statistical analyses, authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether to approve a flight or not.

A. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether to approve a flight or not

B. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide if a flight should be approved

C. information about the weather along a flight route is gathered by authorities, but in some cases they find it particularly difficult to decide whether to approve a flight

D. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether to approve a flight

E. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether or not to approve a flight

_________________
Manager
Joined: 21 Jul 2012
Posts: 80

### Show Tags

17 Jun 2018, 22:06
IMO D.Whether or Not is not a correct idiom.
Manager
Joined: 11 Apr 2018
Posts: 120
Location: India
GPA: 4
WE: Information Technology (Computer Software)

### Show Tags

17 Jun 2018, 22:15
1
IMO D.

Issues covered in the sentence: Modifier and If / Whether.

"Reading reports and comparing statistical analyses" - Who does this - Authorities - So, this should precede authorities.
If - Used to state a condition.
Whether - To show 2 possibilities. Whether should not be accompanied by "or not". As it is implied.
In the given sentence, we have 2 possible outcomes - flight is approved or flight is not approved. We should use Whether.

A. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether to approve a flight or not

B. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide if a flight should be approved

C. information about the weather along a flight route is gathered by authorities, but in some cases they find it particularly difficult to decide whether to approve a flight

D. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether to approve a flight

E. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether or not to approve a flight
Intern
Joined: 12 Aug 2016
Posts: 9

### Show Tags

18 Jun 2018, 01:09
Can you explain me why we can't use IF as in option B ?

Posted from my mobile device
Manager
Joined: 11 Apr 2018
Posts: 120
Location: India
GPA: 4
WE: Information Technology (Computer Software)

### Show Tags

18 Jun 2018, 01:13
1
Nishanth1302 wrote:
Can you explain me why we can't use IF as in option B ?

Posted from my mobile device

Hi,

We have 2 possible outcomes here - flight approved or flight not approved.
Always for 2 possible outcomes, we use "whether".
To use if we need to have a condition.

Hope this helps!

Thanks
Senior Manager
Joined: 14 Feb 2018
Posts: 395

### Show Tags

18 Jun 2018, 02:43
1
gmatzpractice wrote:
IMO E "whether or not"
Hi,

Whether or not is not the correct usage. It is always whether. For the same reason A is wrong. Only D is error free, as it uses "whether" only.

Sent from my Lenovo K53a48 using GMAT Club Forum mobile app
Manager
Joined: 22 Sep 2017
Posts: 173

### Show Tags

25 Jun 2018, 17:15
Here's my analysis.

Reading reports and comparing statistical analyses, authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether to approve a flight or not.

A. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether to approve a flight or not - We can't use "whether .. or not" in a single sentence. It is a redundancy error. Rejected.

B. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide if a flight should be approved - Here the context is missing which is there in the main sentence. Authorities fall in doubt with two available options such as "approve" or "disapprove". It would have been correct if it was mentioned as "they find it difficult to decide if a flight should be approved or not". Rejected.

C. information about the weather along a flight route is gathered by authorities, but in some cases they find it particularly difficult to decide whether to approve a flight - Here we have a modifier error. The preceding modifier "Reading reports and comparing statistical analyses" demands a noun which is being modified by it. So we can't use a passive voice with a wrong modifier usage. Rejected.

D. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether to approve a flight - Here we don't have any redundancy error or modifier error. Seems correct.

E. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether or not to approve a flight[/quote] - Redundancy error "whether .. or not". Rejected.

Manager
Joined: 15 Nov 2017
Posts: 105
Location: India
Concentration: Operations, Marketing
GPA: 4
WE: Operations (Retail)

### Show Tags

25 Jun 2018, 19:32
Bunuel wrote:
Reading reports and comparing statistical analyses, authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether to approve a flight or not.

A. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether to approve a flight or not

B. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide if a flight should be approved

C. information about the weather along a flight route is gathered by authorities, but in some cases they find it particularly difficult to decide whether to approve a flight

D. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether to approve a flight

E. authorities gather information about the weather along a flight route, but in some cases they find it particularly difficult to decide whether or not to approve a flight

Below is the quick analysis with the required rules:
1. Whether has "or not" implied in it
2. If is used for conditional clause
- to show uncertainty whether should be used

Check for verb-ing modifier(Reading reports and comparing statistical analyses) that is used before a comma(as in the case above)- such a modifier can modify either the following noun or the complete clause, depending upon the context of sentence
Here it is modifying the noun(authorities); correctness can be checked by using - Noun + Verb-ing modifier; if the said construction makes sense then the modifier is correctly used
i.e. Authorities read reports and compare statistical analyses(remove -ing)

If we apply all of the above rules then the only qualifying option is D
_________________

Like = +Kudos

Re: Reading reports and comparing statistical analyses, authorities gather &nbs [#permalink] 25 Jun 2018, 19:32
Display posts from previous: Sort by