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21 Jun 2018, 01:32
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To estimate the expansion rate of the universe is a notoriously difficult problem because there is a lack of a single yardstick that all distances can be measured by.
(A) To estimate the expansion rate of the universe is a notoriously difficult problem because there is a lack of a single yardstick that all distances can be measured by.
(B) Estimating the expansion rate of the universe is a notoriously difficult problem because there is no single yardstick by which all distances can be measured.
(C) Because there is a lack of a single yardstick to measure all distances by, estimating the expansion rate of the universe is a notoriously difficult problem.
(D) A notoriously difficult problem is to estimate the expansion rate of the universe because a single yardstick is lacking by which all distances can be measured.
(E) It is a notoriously difficult problem to estimate the expansion rate of the universe because by no single yardstick can all distances be measured.
(SC01554)
(A) To estimate the expansion rate of the universe is a notoriously difficult problem because there is a lack of a single yardstick that all distances can be measured by.
(B) Estimating the expansion rate of the universe is a notoriously difficult problem because there is no single yardstick by which all distances can be measured.
(C) Because there is a lack of a single yardstick to measure all distances by, estimating the expansion rate of the universe is a notoriously difficult problem.
(D) A notoriously difficult problem is to estimate the expansion rate of the universe because a single yardstick is lacking by which all distances can be measured.
(E) It is a notoriously difficult problem to estimate the expansion rate of the universe because by no single yardstick can all distances be measured.
NEW question from GMAT® Official Guide 2019
(SC01554)
https://www.nytimes.com/1996/03/05/science/age-of-universe-is-now-settled-astronomer-says.html
Estimating the expansion rate of the universe is a notoriously difficult problem because of the lack of a single yardstick by which all distances can be measured.
Estimating the expansion rate of the universe is a notoriously difficult problem because of the lack of a single yardstick by which all distances can be measured.
21 Jun 2018, 07:03
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To estimate the expansion rate of the universe is a notoriously difficult problem because there is a lack of a single yardstick that all distances can be measured by.
A. To estimate the expansion rate of the universe is a notoriously difficult problem because there is a lack of a single yardstick that all distances can be measured by. --- 1. 'a lack of a single yardstick' is wordier than 'no single yardstick' in B. 2. Unidiomatic end of the sentence with a preposition.
B. Estimating the expansion rate of the universe is a notoriously difficult problem because there is no single yardstick by which all distances can be measured. --Estimating is a gerund used as part of a substantive noun phrase followed by its verb 'is.' Correct construction.
C. Because there is a lack of a single yardstick to measure all distances by, estimating the expansion rate of the universe is a notoriously difficult problem. --- 'A lack of a single yardstick' is troublesome.
D. A notoriously difficult problem is to estimate the expansion rate of the universe because a single yardstick is lacking by which all distances can be measured. --- is lacking by which' is a problem. It might mean that 'by which' modifies ' is lacking' rather than a yardstick.
E. It is a notoriously difficult problem to estimate the expansion rate of the universe because by no single yardstick can all distances be measured.--- Meaning change, The text means to say that there is no single yardstick' but E says that a single yardstick(even if present) cannot measure all distances.
A. To estimate the expansion rate of the universe is a notoriously difficult problem because there is a lack of a single yardstick that all distances can be measured by. --- 1. 'a lack of a single yardstick' is wordier than 'no single yardstick' in B. 2. Unidiomatic end of the sentence with a preposition.
B. Estimating the expansion rate of the universe is a notoriously difficult problem because there is no single yardstick by which all distances can be measured. --Estimating is a gerund used as part of a substantive noun phrase followed by its verb 'is.' Correct construction.
C. Because there is a lack of a single yardstick to measure all distances by, estimating the expansion rate of the universe is a notoriously difficult problem. --- 'A lack of a single yardstick' is troublesome.
D. A notoriously difficult problem is to estimate the expansion rate of the universe because a single yardstick is lacking by which all distances can be measured. --- is lacking by which' is a problem. It might mean that 'by which' modifies ' is lacking' rather than a yardstick.
E. It is a notoriously difficult problem to estimate the expansion rate of the universe because by no single yardstick can all distances be measured.--- Meaning change, The text means to say that there is no single yardstick' but E says that a single yardstick(even if present) cannot measure all distances.
26 Jun 2018, 10:34
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Hello Everyone!
Let’s tackle this question, one problem at a time, to narrow it down to the right answer!
After a quick scan of each answer, there are a few major differences between each answer. Let's tackle them one at a time, and we will come to the correct answer quickly!
You may already be familiar with the rule that you shouldn't end questions with a preposition. Did you know that also applies to other sentences and clauses too? Take a closer look at each answer, and find any sentences or clauses that end with a preposition:
(A) To estimate the expansion rate of the universe is a notoriously difficult problem because there is a lack of a single yardstick that all distances can be measured by. --> WRONG
(B) Estimating the expansion rate of the universe is a notoriously difficult problem because there is no single yardstick by which all distances can be measured. -> OK
(C) Because there is a lack of a single yardstick to measure all distances by, estimating the expansion rate of the universe is a notoriously difficult problem. --> WRONG
(D) A notoriously difficult problem is to estimate the expansion rate of the universe because a single yardstick is lacking by which all distances can be measured. --> OK
(E) It is a notoriously difficult problem to estimate the expansion rate of the universe because by no single yardstick can all distances be measured. --> OK
There you go - we can bump off answers A and C because they both have clauses that end in prepositions, which is a major no-no in English!
Now that we're left with B, D, and E, let's take a closer look at intended meaning. Focus on finding the most clear and concise answer possible:
(B) Estimating the expansion rate of the universe is a notoriously difficult problem because there is no single yardstick by which all distances can be measured.
This is CORRECT! Everything is clear and concise. The structure of the sentence is clear (X is a problem because Y), and each phrase is cut down to only the most important words to convey meaning.
(D) A notoriously difficult problem is to estimate the expansion rate of the universe because a single yardstick is lacking by which all distances can be measured.
This is INCORRECT because it's overly wordy and potentially confusing to readers. By saying "A problem is X because Y" puts the focus on the word "problem," and not the actual problem at hand. Also, the phrase "a single yardstick is lacking" sounds awkward, and might lead readers to think there IS a yardstick to measure distance, but that it's flawed in some way. Saying "there is no single yardstick" would be clearer and more concise for readers.
(E) It is a notoriously difficult problem to estimate the expansion rate of the universe because by no single yardstick can all distances be measured.
This is INCORRECT because the phrase "by no single yardstick" changes the meaning! Instead of meaning there is no one method to measure distance that exists, this means that all distance cannot be measured by one literal yardstick alone. Of course all distance cannot be measured by one little yardstick - who is going to take it deep into space and use it?
That's not the intended meaning at all, so this is wrong. It also uses the structure "It is a problem to X because Y," which changes the focus from the actual problem (estimating the expansion rate of the universe) to some mysterious "It." There is no need for this extra "it" to be here - just tell us what the problem is and get on with it!
Don’t study for the GMAT. Train for it.
Let’s tackle this question, one problem at a time, to narrow it down to the right answer!
After a quick scan of each answer, there are a few major differences between each answer. Let's tackle them one at a time, and we will come to the correct answer quickly!
You may already be familiar with the rule that you shouldn't end questions with a preposition. Did you know that also applies to other sentences and clauses too? Take a closer look at each answer, and find any sentences or clauses that end with a preposition:
(A) To estimate the expansion rate of the universe is a notoriously difficult problem because there is a lack of a single yardstick that all distances can be measured by. --> WRONG
(B) Estimating the expansion rate of the universe is a notoriously difficult problem because there is no single yardstick by which all distances can be measured. -> OK
(C) Because there is a lack of a single yardstick to measure all distances by, estimating the expansion rate of the universe is a notoriously difficult problem. --> WRONG
(D) A notoriously difficult problem is to estimate the expansion rate of the universe because a single yardstick is lacking by which all distances can be measured. --> OK
(E) It is a notoriously difficult problem to estimate the expansion rate of the universe because by no single yardstick can all distances be measured. --> OK
There you go - we can bump off answers A and C because they both have clauses that end in prepositions, which is a major no-no in English!
Now that we're left with B, D, and E, let's take a closer look at intended meaning. Focus on finding the most clear and concise answer possible:
(B) Estimating the expansion rate of the universe is a notoriously difficult problem because there is no single yardstick by which all distances can be measured.
This is CORRECT! Everything is clear and concise. The structure of the sentence is clear (X is a problem because Y), and each phrase is cut down to only the most important words to convey meaning.
(D) A notoriously difficult problem is to estimate the expansion rate of the universe because a single yardstick is lacking by which all distances can be measured.
This is INCORRECT because it's overly wordy and potentially confusing to readers. By saying "A problem is X because Y" puts the focus on the word "problem," and not the actual problem at hand. Also, the phrase "a single yardstick is lacking" sounds awkward, and might lead readers to think there IS a yardstick to measure distance, but that it's flawed in some way. Saying "there is no single yardstick" would be clearer and more concise for readers.
(E) It is a notoriously difficult problem to estimate the expansion rate of the universe because by no single yardstick can all distances be measured.
This is INCORRECT because the phrase "by no single yardstick" changes the meaning! Instead of meaning there is no one method to measure distance that exists, this means that all distance cannot be measured by one literal yardstick alone. Of course all distance cannot be measured by one little yardstick - who is going to take it deep into space and use it?
That's not the intended meaning at all, so this is wrong. It also uses the structure "It is a problem to X because Y," which changes the focus from the actual problem (estimating the expansion rate of the universe) to some mysterious "It." There is no need for this extra "it" to be here - just tell us what the problem is and get on with it! Don’t study for the GMAT. Train for it.
