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Montana’s wolf population in 2013 numbered about

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Montana’s wolf population in 2013 numbered about  [#permalink]

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New post Updated on: 10 Jul 2019, 08:36
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Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population in 2004.

(A) four times that of their estimated population
(B) four times the estimated population
(C) four times more than the population's estimated amount
(D) four times more wolves than their population estimate
(E) four times more than that of their population's estimated amount

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Originally posted by Skywalker18 on 10 Jul 2019, 08:00.
Last edited by GMATNinja on 10 Jul 2019, 08:36, edited 2 times in total.
Updated question stem with 250
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Montana’s wolf population in 2013 numbered about  [#permalink]

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New post Updated on: 10 Jul 2019, 23:17
2
Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population in 2004.

(A) four times that of their estimated population
Wolf population is the subject and is singular. Pronoun 'their' is incorrect.

(B) four times the estimated population
Correct.

(C) four times more than the population's estimated amount
The original sentence says four times the population. Here four times more than the population distorts the meaning of the original sentence.

(D) four times more wolves than their population estimate
Same issue as C.

(E) four times more than that of their population's estimated amount
Same issue as C and A.

Option B.
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Originally posted by prashanths on 10 Jul 2019, 08:12.
Last edited by prashanths on 10 Jul 2019, 23:17, edited 3 times in total.
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:12
1
Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population of in 2004.

(A) four times that of their estimated population - that of their is incorrect usage - their as a pronoun does not have any proper plural antecedent.
(B) four times the estimated population - Correct
(C) four times more than the population's estimated amount - population's estimated amount is not correct usage
(D) four times more wolves than their population estimate - IMO this one was also close, but B seems more concise.
(E) four times more than that of their population's estimated amount - that of their is incorrect usage - their as a pronoun does not have any proper plural antecedent. Same as A
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Montana’s wolf population in 2013 numbered about  [#permalink]

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New post Updated on: 11 Jul 2019, 03:22
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Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population of in 2004.

(A) four times that of their estimated population - 'their' is wrong here because their tries to refer back to population of wolf, but collective nouns such as population in gmat are singular, thus A is out
(B) four times the estimated population - good as it is
(C) four times more than the population's estimated amount - "population amount" is redundant and illogical. We don't say amount of wolf population is X, we just say pollution of wolf is x million. Out
(D) four times more wolves than their population estimate - same error as in A
(E) four times more than that of their population's estimated amount - Same as A and D + population amount is redundant and iilogical

Originally posted by mira93 on 10 Jul 2019, 08:14.
Last edited by mira93 on 11 Jul 2019, 03:22, edited 2 times in total.
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:17
1
Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population of in 2004.

(A) four times that of their estimated population

There is no antecendent of 'thier' because hte subject is he population and not wolfs, for that reason this is wrong.
(B) four times the estimated population
Clear and crisp meaning without any error.
(C) four times more than the population's estimated amount
estimated amount is wrong usage for the population.
(D) four times more wolves than their population estimate
population estimate is compared to more wolfs, also option b is better.
(E) four times more than that of their population's estimated amount
again their has no antecedent. and is thus wrong sentence.
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Montana’s wolf population in 2013 numbered about  [#permalink]

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New post Updated on: 11 Jul 2019, 07:42
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Edit: Issue has been addressed.

IMO B.

The other options appear to be needlessly wordy, or the items being compared aren’t parallel.

Originally posted by Jbrandl1 on 10 Jul 2019, 08:19.
Last edited by Jbrandl1 on 11 Jul 2019, 07:42, edited 1 time in total.
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:31
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Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population of in 2004.

comparison is between population in 2013 and in 2004

(A) four times that of their estimated population - that refers to what? And whatever it refers to, it definitely can't be population.Incorrect
(B) four times the estimated population - Correct comparison
(C) four times more than the population's estimated amount - comparison is population vs population's estimated amount. Also 4 times is sufficient to tell the difference, 'more' is redundant. Incorrect
(D) four times more wolves than their population estimate - comparison is population vs wolves. Also 4 times is sufficient to tell the difference, 'more' is redundant. Incorrect
(E) four times more than that of their population's estimated amount - comparison is population vs that(Same as A) Also 4 times is sufficient to tell the difference, 'more' is redundant. Incorrect

Hence C
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:31
Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population of in 2004.

(A) four times that of their estimated population - Incorrect pronoun their is not correct
(B) four times the estimated population - Incorrect numbers about 1000 is compared with poulation
(C) four times more than the population's estimated amount - Correct correct comparison
(D) four times more wolves than their population estimate - Incorrect their is not correct usage
(E) four times more than that of their population's estimated amount - Incorrect their is not correct usage
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:32
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B

..four times the estimated population of (wolves) in 2004.

We can't use "four times more" because it changes the intended meaning. Four times more signifies five times of the population.

Also, "that" of the estimated population is redundant because "that" itself should refer to wolf's population.
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:38
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Here population of wolves is being compared.

A) Use of 'their' for singular 'population' is not correct.
B) Looks better. let's keep it.
C) population's estimated is wordy and wrong as population of two years are being compared.
D) Use of 'their' is not correct.
E) Wordy and use of population's makes population an adjective in sentence.

Hence IMO option B is the answer.
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:38
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IMO Answer:B

Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population in 2004.

(A) four times that of their estimated population
(B) four times the estimated population
(C) four times more than the population's estimated amount
(D) four times more wolves than their population estimate
(E) four times more than that of their population's estimated amount
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:39
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Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population of 250 in 2004.

(A) four times that of their estimated population
their is incorrect - since wolf population is singular
(B) four times the estimated population
correct
(C) four times more than the population's estimated amount
unnecessarily wordy, population's estimated amount
(D) four times more wolves than their population estimate
same reason as A
(E) four times more than that of their population's estimated amount
same reason as A
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:41
Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population of in 2004.

(A) four times that of their estimated population - Incorrect, their related to population
(B) four times the estimated population - Incorrect, then it would be: population of in 2004
(C) four times more than the population's estimated amount - [color=#ff0000]Correct[/color]
(D) four times more wolves than their population estimate - Incorrect, redundant - wolves than their population
(E) four times more than that of their population's estimated amount - Incorrect, their related to population
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:43
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(A) four times that of their estimated population - No antecedent for "their" - montana's is in possessive
(B) four times the estimated population - Correct
(C) four times more than the population's estimated amount Wrong Comparison - "Wolves population Vs Population's"
(D) four times more wolves than their population estimate Wrong Comparison - "Wolves Vs their Population"
(E) four times more than that of their population's estimated amount No antecedent for "their" - montana's is in possessive

IMO B
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:44
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Quote:
Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population of in 2004.

(A) four times that of their estimated population
(B) four times the estimated population
(C) four times more than the population's estimated amount
(D) four times more wolves than their population estimate
(E) four times more than that of their population's estimated amount


In this sentence correction example, our goal is to find whether the underlined part of the sentence is the correct one or there are any other options which would suit better. Let us have a look at the options one by one:
(A) four times that of their estimated population - The first part of the sentence states that "Montana’s wolf population in 2013 numbered about 1000". Use of the phrase "that of" in the second part of the sentence is redundant since according to the parallelism the comparison should be made with the population of wolves in 2013, and it is not clear what the word "that" is referring to. Incorrect.
(B) four times the estimated population - This answer is concise and clear. It is the shortest answer which; however, does not lose its meaning. Correct.
(C) four times more than the population's estimated amount - "Population's estimated amount" is wordy and is not the correct use of words. Both population and amount express the quantity, and the use of both in one context is unnecessary. Incorrect.
(D) four times more wolves than their population estimate - In the first part of the sentence the author speaks about population of wolves, hence, it is clear that the speech is about population of wolves in the second part of the sentence, and it would be more concise to drop the word "wolves" in this case. In addition, the phrase "than their population estimate of" does not have any word to refer as instead of wolves we already used the word "their". Incorrect.
(E) four times more than that of their population's estimated amount - This answer carries mistakes both from options A and C. Incorrect.
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:46
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our times vs four times more

Four times is the correct usage. C,D and E are out

In A the usage of "that of" is absurd and incorrect

Only valid answer IMO is B
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:50
Quote:
Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population of in 2004.

(A) four times that of their estimated population
(B) four times the estimated population
(C) four times more than the population's estimated amount
(D) four times more wolves than their population estimate
(E) four times more than that of their population's estimated amount


(A,C,D,E) "their" is plural, "population" is singular, sva out;

Answer (B).
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Re: Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:51
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IMO B;

Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population of in 2004.

(A) four times that of their estimated population ; that of their is wrong
(B) four times the estimated population ; concise and correct
(C) four times more than the population's estimated amount ; estimated is wrong
(D) four times more wolves than their population estimate ; more wolves is wrong
(E) four times more than that of their population's estimated amount ; population's estimated is wrong
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Montana’s wolf population in 2013 numbered about  [#permalink]

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New post Updated on: 11 Jul 2019, 05:57
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Let’s begin from the correct answer choice. Understanding why B is correct greatly helped me understand why the others are incorrect.

B. Montana’s wolf population in 2013 numbered about 1000, four times the estimated population in 2004.

Usually adverbial modifiers at the end of a sentence that are separated by a comma (the blue part above) describe the closest verb numbered and its subject population in the preceding sentence. What was the population in 2013? The actual population numbered four times the estimated population:

Montana’s wolf population in 2013 numbered four times the estimated population in 2004.

The actual population is compared with the estimated population. Blue parts above are parallel. Thus I think that B is correct.

A. Montana’s wolf population in 2013 numbered about 1000, four times that of their estimated population in 2004.

The blue elements of the comparison above are parallel, but the red part is parallel to nothing. Let’s first address that.

We either use 'the population': The population in 2013 numbered four times the population in 2004.
Or use 'that': The population in 2013 numbered four times that (the population) in 2004.
But NOT both: The population in 2013 numbered four times that of the population in 2004.

The reason is that the only singular noun that could possibly refer back to is the population. So for A, we get ...four times the population of their estimated population. That’s nonsensical.

Now let’s address their. There is no plural noun that their can refer to. The only possessive is Montana’s and it is singular. Question: would it be correct if we had its instead of their? NO, because now we would compare Montana’s wolf population with its (Montana’s) estimated population (people). The original sentence is not comparing the population of wolves with that of people. Additionally, its wouldn’t refer to wolf because wolf is an adjective here, not noun. Thus even its would be incorrect.

C. Montana’s wolf population in 2013 numbered about 1000, four times more than the population's estimated amount in 2004.

Above all, amount is incorrect because wolf can be counted. Secondly, simultaneous usage of two quantity words (population, amount) is redundant. We don’t usually say – Please check the quantity of the amount of sugar. We either say – Please check the quantity of sugar, or say – Please check the amount of sugar. We also say – amount of sugar, but not – sugar’s amount. ...population's estimated amount... is incorrect for these two reasons.

D. Montana’s wolf population in 2013 numbered about 1000, four times more wolves than their population estimate in 2004.

The only plural noun that their can refer back to is wolves, so the sentence would read:

Montana’s wolf population in 2013 numbered four times more wolves than the wolves’ population estimate in 2004.

It is illogical to compare the number of wolves with the wolves’ population estimate. Besides, ...the wolves’ population estimate... illogically suggests that wolves have population estimate.

E. Montana’s wolf population in 2013 numbered about 1000, four times more than that of their population's estimated amount in 2004.

This answer choice is the most brazen out of all. Because it is made up of all the errors form A, C, D, and E, it is just like Frankenstein's monster :-D

Hence B
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Originally posted by JonShukhrat on 10 Jul 2019, 08:55.
Last edited by JonShukhrat on 11 Jul 2019, 05:57, edited 3 times in total.
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Montana’s wolf population in 2013 numbered about  [#permalink]

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New post 10 Jul 2019, 08:57
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Wolf population is multiple of some estimation. So we should use times the X. More should not be used here. So answer is either A or B.

A is incorrect because their doesn't have any antecedent.

So the answer is B

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