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

It is currently 26 Jun 2019, 05:11

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

The gyrfalcon, an Arctic bird of prey, has survived a close brush with

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

 
Intern
Intern
avatar
B
Joined: 26 Aug 2017
Posts: 20
Location: Singapore
Concentration: Strategy, General Management
Schools: HBS '21
WE: Management Consulting (Consulting)
GMAT ToolKit User
The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 13 Jan 2019, 03:00
We can logically deduce that 'it' in the second independent clause refers to 'gyrfalcon' in the first independent clause.

By surviving a brush with extinction, you'd expect the population (in this case, 'numbers') of a species to increase. How could 'it' be referring to the numbers or statistics of 'extinction' and in this case, greater likelihood of extinction?

'It' would therefore only refer to gyrfalcon, which means there shouldn't be any issue or ambiguity about using 'it' with a LOGICAL and singular antecedent. The rest of the other points of elimination e.g. greater than vs. much, has been expounded on by the other experts.
Intern
Intern
avatar
B
Joined: 11 Feb 2018
Posts: 7
Re: The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 06 Mar 2019, 12:53
#A reads to me like we are comparing numbers to a time period.

"it's numbers... greater than" "when"
Manager
Manager
avatar
Joined: 16 May 2018
Posts: 55
Re: The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 10 Mar 2019, 03:35
B is wrong because it uses ‘more than’, while comparing numbers. Greater than is better in this regard, so A would be the superior choice.

C is wrong because it uses plural pronoun ‘their’ to refer to a singular noun. In D ‘their’ does not have a clear referent. E is much like A but wordier. Again, like B that makes it the inferior choice.



A is the best option.
Manager
Manager
avatar
B
Joined: 12 Jul 2017
Posts: 135
GMAT 1: 570 Q43 V26
GMAT 2: 660 Q48 V34
CAT Tests
Re: The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 14 Mar 2019, 22:12
Hello Experts daagh , GMATNinja ,
I have a small query here:
Will the placement of now matter in the sentence?

Statement 1:
now its numbers are five times greater than when they werewhen the use of DDT was sharply restricted in the early 1970's.

Statement 2:
its numbers are now five times greater than when the use of DDT was sharply restricted in the early 1970's.

Is there any difference in statement 1 and statement 2?
CEO
CEO
User avatar
V
Joined: 15 Jul 2015
Posts: 2789
Location: India
GMAT 1: 780 Q50 V51
GRE 1: Q170 V169
Re: The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 15 Mar 2019, 01:51
1
rish2708 wrote:
Hello Experts daagh , GMATNinja ,
I have a small query here:
Will the placement of now matter in the sentence?

Statement 1:
now its numbers are five times greater than when they werewhen the use of DDT was sharply restricted in the early 1970's.

Statement 2:
its numbers are now five times greater than when the use of DDT was sharply restricted in the early 1970's.

Is there any difference in statement 1 and statement 2?
Although I prefer the second one, I don't think it'll make much of a difference, as the meaning is clear either way.

Now the company's profits are five times greater than they were two years ago.
The company's profits are now five times greater than they were two years ago.

This is assuming that we are not looking at any alternate meanings of now. Otherwise, we could say something like this:
Now, the company's profits are five times greater than they were two years ago. Here the now could be used to emphasize whatever comes after it.
_________________
Manager
Manager
avatar
B
Joined: 11 Aug 2017
Posts: 66
Re: The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 15 Mar 2019, 06:57
daagh wrote:
The subject is gyrfalcon, a singular. So their numbers in C and they in D are wrong, not withstanding the grammar of using the comma itself in these cases. In addition five folds are not the same as five times greater. Five folds are 5x (original x + four folds) while five times greater is 6x (original x+ five times). This subtle point adds a significant alteration to the intent.


In E, the intent is altered by using the preposition with, as if the bird of prey has survived the close brush with extinction because of the five fold numbers now. On the contrary the original passage implies that five time greater number is the result of the survival rather than the cause of the survival.


B is dumped for using the inappropriate comparison term more to denote a countable plural subject numbers.

This leaves the original one as the right choice, which uses the correct description greater than for the countable plural subject of numbers.

If somebody claims Answer is E, I am bound to repudiate.



I struggled btwn A and E , I understood why E is wrong. but I still dont understand in A if it ends with "Than" should be completed with some comparison phrase.
((Number greater than when..)) sounds very awkward.
CEO
CEO
User avatar
V
Joined: 15 Jul 2015
Posts: 2789
Location: India
GMAT 1: 780 Q50 V51
GRE 1: Q170 V169
Re: The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 15 Mar 2019, 21:28
2
Mohammad Ali Khan wrote:
I struggled btwn A and E , I understood why E is wrong. but I still dont understand in A if it ends with "Than" should be completed with some comparison phrase.
((Number greater than when..)) sounds very awkward.
What's happening here is that some words are not being mentioned explicitly in that sentence. Here are a couple of other examples to help you see this:

1. You're taller than when I last saw you.
is the same as
You're taller than you were when I last saw you.

2. Students solve questions more quickly at home than when they are at a test center.
is the same as
Students solve questions more quickly at home than they do when they are at a test center.

Similarly,
Its numbers are now five times greater than when the use of DDT was sharply restricted.
is the same as
Its numbers are now five times greater than they were when the use of DDT was sharply restricted.
_________________
Intern
Intern
avatar
B
Joined: 04 Oct 2018
Posts: 11
CAT Tests
Re: The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 19 Mar 2019, 07:18
GMATNinja wrote:
I kinda hate this question. And I swear that I’m basically a very happy person. ;)

Quote:
(A) extinction; its numbers are now five times greater than

Two things jump out at me right away in (A), and neither of them are a problem. First, the semicolon needs to separate two independent clauses, and it does exactly that. Second, the “its” needs to refer back to a singular noun, and it does exactly that – “its” refers to “the gyrfalcon.”

So I wouldn't eliminate (A) right away. But it is awfully similar to (B), so let’s put them side-by-side:
Quote:
(A) extinction; its numbers are now five times greater than
(B) extinction; its numbers are now five times more than

The only difference is that (A) uses the phrase “greater than”, and (B) uses “more than.” In real life, I don’t think that either of these necessarily sounds better than the other, and I probably wouldn't notice if somebody said the incorrect version.

Here’s the thing: if you’re comparing numbers themselves – not quantity in general, but actual numbers – it’s generally better to use “greater than” instead of “more than.” For example, you would read the mathematical expression 20 > 10 as “twenty is greater than ten.”

Or you consider the following two sentences:
  • I ate more burritos than Mike last night. → we’re comparing quantities of burritos in general, not the numbers themselves, so “more” is OK
  • I ate a greater number of burritos than Mike last night. → now that we’re comparing the numbers, we need to use “greater”
  • I ate a more number of burritos than Mike last night. → not remotely tempting to use “more” to compare the numbers themselves in this case, right?

Back to the GMAT question. Since we’re directly and literally comparing the numbers themselves, we need to use “greater than”, and not “more than”.

So we can eliminate (B), and hang onto (A).

Quote:
(C) extinction, their numbers now fivefold what they were

Hopefully, the pronouns jump right off the page at you. “Their” needs to refer to a plural noun, and… well, we don’t have any plurals earlier in the sentence. “The gyrfalcon” is singular.

So (C) is out.

Quote:
(D) extinction, now with fivefold the numbers they had

(D) has a similar problem as (C): there’s some general awkwardness, but the much more important issue is that “they” doesn’t have a logical referent. The only plural noun earlier in the sentence is “the numbers”, and that definitely wouldn’t work: “… now with fivefold the numbers the numbers had…” Yikes. Of course, “they” is logically trying to refer to “the gyrfalcon”, and that’s singular.

So (D) is gone, too.

Quote:
(E) extinction; its numbers are now five times greater than what they were

(E) is just a crappier version of (A). The only real difference is that (E) adds the phrase “what they were” to the end of the sentence, and there’s no good reason to do that – it adds nothing to the meaning, and just makes the sentence wordier and messier.

We can eliminate (E), and (A) is the best we can do.


thank you, i just had the same doubt, between more than , less than..and my eyes went to semi colon separating two independent clauses
i shall remember it that we compare numbers(literally or mathetically) we use greater than less than, else we use more than less than, in general
Senior Manager
Senior Manager
User avatar
P
Joined: 14 Feb 2017
Posts: 488
Location: Australia
Concentration: Technology, Strategy
GMAT 1: 560 Q41 V26
GMAT 2: 550 Q43 V23
GMAT 3: 650 Q47 V33
GPA: 2.61
WE: Management Consulting (Consulting)
CAT Tests
The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 26 Mar 2019, 04:00
jade3 wrote:
In GMAT when we find "numbers" in a comparison, we should use "greater than" and not "more than"


This is too general advice.

We use "greater than" only when "numbers" / "the number of..." / "a number of".... etc. is the subject.

Here, the subject is the pronoun "its", which has the antecedent "the gyrfalcon", so many people are getting confused between A and B.
_________________
Goal: Q49, V41

+1 Kudos if you like my post pls!
Intern
Intern
avatar
Joined: 30 Dec 2018
Posts: 1
Re: The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 06 Apr 2019, 03:59
GMATNinja wrote:
I kinda hate this question. And I swear that I’m basically a very happy person. ;)

Quote:
(A) extinction; its numbers are now five times greater than

Two things jump out at me right away in (A), and neither of them are a problem. First, the semicolon needs to separate two independent clauses, and it does exactly that. Second, the “its” needs to refer back to a singular noun, and it does exactly that – “its” refers to “the gyrfalcon.”

So I wouldn't eliminate (A) right away. But it is awfully similar to (B), so let’s put them side-by-side:
Quote:
(A) extinction; its numbers are now five times greater than
(B) extinction; its numbers are now five times more than

The only difference is that (A) uses the phrase “greater than”, and (B) uses “more than.” In real life, I don’t think that either of these necessarily sounds better than the other, and I probably wouldn't notice if somebody said the incorrect version.

Here’s the thing: if you’re comparing numbers themselves – not quantity in general, but actual numbers – it’s generally better to use “greater than” instead of “more than.” For example, you would read the mathematical expression 20 > 10 as “twenty is greater than ten.”

Or you consider the following two sentences:
  • I ate more burritos than Mike last night. → we’re comparing quantities of burritos in general, not the numbers themselves, so “more” is OK
  • I ate a greater number of burritos than Mike last night. → now that we’re comparing the numbers, we need to use “greater”
  • I ate a more number of burritos than Mike last night. → not remotely tempting to use “more” to compare the numbers themselves in this case, right?

Back to the GMAT question. Since we’re directly and literally comparing the numbers themselves, we need to use “greater than”, and not “more than”.

So we can eliminate (B), and hang onto (A).

Quote:
(C) extinction, their numbers now fivefold what they were

Hopefully, the pronouns jump right off the page at you. “Their” needs to refer to a plural noun, and… well, we don’t have any plurals earlier in the sentence. “The gyrfalcon” is singular.

So (C) is out.

Quote:
(D) extinction, now with fivefold the numbers they had

(D) has a similar problem as (C): there’s some general awkwardness, but the much more important issue is that “they” doesn’t have a logical referent. The only plural noun earlier in the sentence is “the numbers”, and that definitely wouldn’t work: “… now with fivefold the numbers the numbers had…” Yikes. Of course, “they” is logically trying to refer to “the gyrfalcon”, and that’s singular.

So (D) is gone, too.

Quote:
(E) extinction; its numbers are now five times greater than what they were

(E) is just a crappier version of (A). The only real difference is that (E) adds the phrase “what they were” to the end of the sentence, and there’s no good reason to do that – it adds nothing to the meaning, and just makes the sentence wordier and messier.

We can eliminate (E), and (A) is the best we can do.





Hi,

I used your trick on the question below but i got the wrong answer. please help me on this .

Thanks


When drive-ins were at the height of their popularity in the late 1950's, some 4,000 existed in the United States, but today there are less than one-quarter that many.

(A) there are less than one-quarter that many

(B) there are fewer than one-quarter as many

(C) there are fewer than one-quarter of that amount

(D) the number is less than one-quarter the amount

(E) it is less than one-quarter of that amount
Manager
Manager
avatar
P
Joined: 31 Jul 2017
Posts: 214
Location: Tajikistan
Premium Member
The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 03 May 2019, 00:15
2
boeinz wrote:
The gyrfalcon, an Arctic bird of prey, has survived a close brush with extinction; its numbers are now five times greater than when the use of DDT was sharply restricted in the early 1970's.


(A) extinction; its numbers are now five times greater than

(B) extinction; its numbers are now five times more than

(C) extinction, their numbers now fivefold what they were

(D) extinction, now with fivefold the numbers they had

(E) extinction; its numbers are now five times greater than what they were



Verbal Question of The Day: Day 233: Sentence Correction


Subscribe to GMAT Question of the Day: E-mail | RSS
For All QOTD Questions Click Here


https://www.nytimes.com/1986/01/07/science/science-watch-reduction-of-pesticides-nets-increase-in-bird-populations.html

As recently as a decade ago, the scientists noted, bald eagles were sighted in only 39 states. Now their number has increased by 92 percent to 37,000 and the living national symbol, which feeds mainly on fish, can be sighted in every state but Hawaii. The gyrfalcon, an Arctic species that feeds on snowshoe hares and grouse, has survived a close brush with extinction, its numbers rising fivefold since the early 1970's to 500. The number of peregrine falcons, which breed in cities and wilderness areas across the continent, have climbed 19 percent in 14 years to an estimated total of 1,200. But during the same period the population of Harris's hawk, a dweller of the Southwestern deserts, declined 38 percent to 5,600.


Edit: Watch out - There is a similar but modified version of this question HERE




(A) extinction; its numbers are now five times greater than
CORRECT

(B) extinction; its numbers are now five times more than
When we compare numbers themselves, we use 'greater than'. E.g. five is greater than four. While we use 'more than' to compare things. E.g. I have eaten more food today than yesterday. Thus, 'more than' is wrong here.

(C) extinction, their numbers now fivefold what they were
Few things are wrong here. First, 'their' is wrong as subject is singular. Second, fivefold means 4x greater (original x + 4x), while original meaning conveys 5 times or 6folds (original x + 5 times). Third, 'what' is wrong here because it wants to say 'the things that' So, it would look like ' their numbers now fivefold THE THINGS THAT they were'. Lastly, 'they' is wrong because it refers to what? It intends to refer to bird (which is singular)

(D) extinction, now with fivefold the numbers they had
Same errors as in C. Refer to above for 'fivefold' and 'they'

(E) extinction; its numbers are now five times greater than what they were
Here, things are ok until 'what they were'. 'What' means 'the things that'. so if we substitute, it becomes a mess, if the sentence was ' its numbers are now five times greater than they were' then ok, but with 'what' it is nonsense.
_________________
Please press kudos, if I was able to help you. Thank you.
Intern
Intern
avatar
B
Joined: 24 Apr 2018
Posts: 25
Re: The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 19 May 2019, 00:10
GMATNinja wrote:
datatrader wrote:
Thank you GMATNinja, but I am positing that A is incorrect (not just more concise). A has an incorrect parallelism issue. It would have to read: "extinction; its numbers are now five times greater than they were.... Otherwise, it incorrectly compares "its numbers" with "when the use of DDT was sharply restricted." Am I reading this incorrectly? Would love souvik101990 to weigh in with the source of this Q and reasoning behind OA. I always find it strange when the data reveals overwhelming support for a "wrong" answer (49% chose E vs. 34% for A).

Sadly, (A) is unambiguously the correct answer. It's an official question, straight from the official GMAT verbal guide. And keep in mind that when you take an actual, adaptive GMAT, the test is trying to find the level of question at which you get roughly half of the questions right -- so if this is a 700-level question, we'd expect close to half of the test-takers who get 700s to get it wrong. And in a broader population, we might expect much more than half to miss a really hard question, unfortunately.

Anyway, here are (A) and (E) again:

Quote:
The gyrfalcon, an Arctic bird of prey, has survived a close brush with extinction; its numbers are now five times greater than when the use of DDT was sharply restricted in the early 1970's.

(A) extinction; its numbers are now five times greater than
(E) extinction; its numbers are now five times greater than what they were

Let me come at (E) from a different direction this time. Sorry friends, I was a little bit lazy above in basically saying "hey, you really don't need the extra words" in (E). But there's a more technical problem: "what" is trying to act as some sort of pronoun in (E), and I don't think that works. "What" can occasionally be used as a pronoun in a non-question (technically, a relative pronoun if you like jargon), but when it is used as a pronoun, it basically is a singular phrase that means "the things that." So these two sentences would be OK:

  • "What I did after drinking 17 beers last night was regrettable." --> In other words, "the things that I did last night [were] regrettable." Grammatically, that works fine.
  • "Mike couldn't believe what he saw on the beach in Chile." --> Mike couldn't believe "the things that he saw" on the beach. That also works fine.

But in (E)? We have "its numbers are now five times greater than the things that they were when the use of DDT was sharply restricted in the early 1970's." And that doesn't quite make sense.

Honestly, I agree with the heart of what some of you are arguing here. If the sentence said "it's numbers are now five times greater than they were when the use of DDT was sharply restricted...", then I'd be happier. That would set up the comparison nicely. But that's not one of our options, and the word "what" turns (E) into a mess.

In (A), the key is that the comparison isn't fundamentally illogical or confusing -- even though I agree that it would be clearer if "they were" were added. We're directly comparing the numbers in two different time periods: "its numbers are now five times greater than when the use of DDT was sharply restricted in the early 1970's." Logically, that actually makes perfect sense, and the GMAT would argue that there's no need to repeat "they were," because it's clear enough (at least in the GMAT's view) that we're comparing those two time periods. And adding the phrase "what they were" would definitely be wrong in (E), for the reasons I explained above.

To be fair: this one is tricky, and I can't really understand why the GMAT thinks it's important to test these concepts. But (A) is unambiguously correct, sadly.

I hope this helps!


Hi,
GMATNinja

Here is another official question where OA is A
The gyrfalcon, an arctic bird of prey, has survived a close brush with extinction; its numbers are now five times greater than what they were when the use of DDT was sharply restricted in the early 1970's.

(A) its numbers are now five times greater than what they were when
(B) its numbers now fivefold what they were when
(C) its numbers now five times more than when
(D) now with fivefold the numbers it had when
(E) now with its numbers five greater since

What is your take on that?
GMAT Club Verbal Expert
User avatar
S
Joined: 20 Nov 2016
Posts: 261
Re: The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 19 May 2019, 14:24
cool16 wrote:
Hi,
GMATNinja

Here is another official question where OA is A
The gyrfalcon, an arctic bird of prey, has survived a close brush with extinction; its numbers are now five times greater than what they were when the use of DDT was sharply restricted in the early 1970's.

(A) its numbers are now five times greater than what they were when
(B) its numbers now fivefold what they were when
(C) its numbers now five times more than when
(D) now with fivefold the numbers it had when
(E) now with its numbers five greater since

What is your take on that?

Check out this thread for a discussion of that (very similar) question. If that doesn't answer your questions, please post any additional questions to that thread. Thank you!
_________________
Manager
Manager
avatar
G
Joined: 05 Jul 2018
Posts: 236
Location: India
Concentration: General Management, Technology
GRE 1: Q162 V149
GPA: 3.6
WE: Information Technology (Consulting)
Reviews Badge CAT Tests
Re: The gyrfalcon, an Arctic bird of prey, has survived a close brush with  [#permalink]

Show Tags

New post 31 May 2019, 21:32
There is a very subtle issue of comparison here, let us ask ourselves this question. What are we comparing? A noun or a verb?

Gyrfalcon numbers are now greater than when DDT was used
Vs
Gyrfalcon numbers are now greater than what they were when DDT was used


We are clearly comparing the 2 numbers which are nouns and not verbs. Hence the first version is correct.

Moreover, by just looking for concision here as GMATNinja mentioned, we see that first one is a better concise version which says exactly the same meaning and that too in lesser words
_________________
GMAT Club Bot
Re: The gyrfalcon, an Arctic bird of prey, has survived a close brush with   [#permalink] 31 May 2019, 21:32

Go to page   Previous    1   2   [ 34 posts ] 

Display posts from previous: Sort by

The gyrfalcon, an Arctic bird of prey, has survived a close brush with

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne