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In the middle of the 19th century, mathematician turned computer scien

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In the middle of the 19th century, mathematician turned computer scien  [#permalink]

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New post 17 Apr 2017, 12:51
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  95% (hard)

Question Stats:

38% (02:05) correct 62% (01:55) wrong based on 413 sessions

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In the middle of the 19th century, mathematician turned computer scientist Ada Lovelace aided Charles Babbage by developing the first computer algorithm, a breakthrough that ushered in the computer age, leading to machines capable of executing functions far more rapidly than could any possible human and resulting in every subsequent development in the field, from the development of the very first personal computer nearly a century later to the programs that today sequence genomes.


A. mathematician turned computer scientist Ada Lovelace aided Charles Babbage by developing the first computer algorithm, a breakthrough that ushered in

B. Ada Lovelace, mathematician and computer scientist, aided Charles Babbage by developing the first computer algorithm, ushering in

C. Ada Lovelace, who was a mathematician turned computer scientist, aided Charles Babbage in developing the first computer algorithm, which ushered in

D. the mathematician turned computer scientist, Ada Lovelace, aided Charles Babbage in developing the first computer algorithm; she ushered in

E. Ada Lovelace, the mathematician turned computer scientist, aided Charles Babbage by developing the first computer algorithm, ushering in
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Re: In the middle of the 19th century, mathematician turned computer scien  [#permalink]

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New post 18 Apr 2017, 02:21
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In the middle of the 19th century, mathematician turned computer scientist Ada Lovelace aided Charles Babbage by developing the first computer algorithm, a breakthrough that ushered in the computer age, leading to machines capable of executing functions far more rapidly than could any possible human and resulting in every subsequent development in the field, from the development of the very first personal computer nearly a century later to the programs that today sequence genomes.

There is no need to consider other than the underlined part. This is essentially a test of modification

1. Mathematician turned computer scientist Ada Lovelace aided Charles Babbage by developing the first computer algorithm, a breakthrough that ushered in --- looks like the best since the appositive adequately refers to the algorithm.


2. Ada Lovelace, mathematician and computer scientist, aided Charles Babbage by developing the first computer algorithm, ushering in --- The adverbial modifier 'ushering in' is a problem, since it now modifies not the algorithm but Ada aiding Charles.

3. Ada Lovelace, who was a mathematician turned computer scientist, aided Charles Babbage in developing the first computer algorithm, which ushered in --- 'In developing' alters the meaning. It means that it was Charles who developed the algorithm, while it was Ada who actually did it.

4. the mathematician turned computer scientist, Ada Lovelace, aided Charles Babbage in developing the first computer algorithm; she ushered in … a couple of wrongs. 1. 'In developing'. 2. -She ushered in- is wrong; it was the algorithm which ushered in.

5. Ada Lovelace, the mathematician turned computer scientist, aided Charles Babbage by developing the first computer algorithm, ushering in ... The adverbial ushering in is wrong as explained in choice two.

A deep question as usual from Magoosh.
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Re: In the middle of the 19th century, mathematician turned computer scien  [#permalink]

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New post 18 Apr 2017, 12:42
anmol_06 wrote:
isnt aided by a wrong idiom ?


I am not sure why you would think so.
How did Ada aid Charles?.. by developing.
I do not see any problem with this construction.
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Re: In the middle of the 19th century, mathematician turned computer scien  [#permalink]

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New post 27 May 2017, 23:34
In the middle of the 19th century, mathematician turned computer scientist Ada Lovelace aided Charles Babbage by developing the first computer algorithm, a breakthrough that ushered in the computer age, leading to machines capable of executing functions far more rapidly than could any possible human and resulting in every subsequent development in the field, from the development of the very first personal computer nearly a century later to the programs that today sequence genomes.

1. mathematician turned computer scientist Ada Lovelace aided Charles Babbage by developing the first computer algorithm, a breakthrough that ushered in correct
2. Ada Lovelace, mathematician and computer scientist, aided Charles Babbage by developing the first computer algorithm, ushering in and is wrong, it distorts intended meaning
3. Ada Lovelace, who was a mathematician turned computer scientist, aided Charles Babbage in developing the first computer algorithm, which ushered in I think who was a mathematician turned computer scientist is wrong
4. the mathematician turned computer scientist, Ada Lovelace, aided Charles Babbage in developing the first computer algorithm; she ushered in
5. Ada Lovelace, the mathematician turned computer scientist, aided Charles Babbage by developing the first computer algorithm, ushering in
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Re: In the middle of the 19th century, mathematician turned computer scien  [#permalink]

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New post 29 May 2017, 03:11
In the middle of the 19th century, mathematician turned computer scientist Ada Lovelace aided Charles Babbage by developing the first computer algorithm, a breakthrough that ushered in the computer age, leading to machines capable of executing functions far more rapidly than could any possible human and resulting in every subsequent development in the field, from the development of the very first personal computer nearly a century later to the programs that today sequence genomes.

1. mathematician turned computer scientist Ada Lovelace aided Charles Babbage by developing the first computer algorithm, a breakthrough that ushered in
--> correct.

2. Ada Lovelace, mathematician and computer scientist, aided Charles Babbage by developing the first computer algorithm, ushering in
--> , v-ing is wrong here.

3. Ada Lovelace, who was a mathematician turned computer scientist, aided Charles Babbage in developing the first computer algorithm, which ushered in
--> we need "essential modifier", not "non-essential modifier".

4. the mathematician turned computer scientist, Ada Lovelace, aided Charles Babbage in developing the first computer algorithm; she ushered in
--> "she" is ambiguous.

5. Ada Lovelace, the mathematician turned computer scientist, aided Charles Babbage by developing the first computer algorithm, ushering in
--> , v-ing is wrong here.
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Re: In the middle of the 19th century, mathematician turned computer scien  [#permalink]

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New post 15 Jan 2018, 22:16
usher means to complete sth
Only A has the correct use of usher. "a breakthrough that ushered in the computer age"
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In the middle of the 19th century, mathematician turned computer scien  [#permalink]

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New post 24 May 2018, 05:23
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MAGOOSH Official Explanation:



Two possible pitfalls

Pitfall #1

This is a tricky question. Be careful not to get a case of “eliminitis” and unthinkingly get rid of (A) and (D). Sure, it’s tempting given that we automatically think that Ada Lovelace should immediately follow the comma. However, it is fine to have an adjective immediately following the comma as long as that adjective is modifying Ada Lovelace.

Pitfall #2

If you read the entire sentence, you’ll notice the two participles “leading” and “resulting”. Almost, reflexively our brain screams parallelism and we eliminate every answer choice that doesn’t have “ushering”. However, “leading” and “resulting” are not the second and third members of a list of three participles. Rather, we have a phrase with the past tense of ushered that is modified by the two participles “leading” and “resulting”. In other words, these two participles describe a noun in the preceding clause.

The original answer has “breakthrough” as this noun. The other answer choices change it so suddenly either Ada Lovelace is leading to every subsequent development in computers (weird) or the algorithm itself is leading to machines capable of executing functions (not as weird). For this reason, (B), (C), (D), and (E) can all be eliminated.

(A) provides the correct noun “breakthrough”, which serves as a summative modifier describing the work of Ada Lovelace. Only (A) does this.

Answer: (A)

POE:

Split #1: idiom

This is a subtle idiom in English: [role #1] “turned” [role #2].

Clint Eastwood is an actor turned politician.

Michael Strahan is an athlete turned TV host.

This is a concise elegant way to sum up a person’s past and present role all at once. In this sentence, it is perfectly correct to describe Lovelace as a “mathematician turned computer scientist”; choices (A) & (D) use this elegant correct structure.

To call Lovelace simply “mathematician and computer scientist,” as in choice (B), is also brief and correct; we lose a little information in this formulation, but on its own, it’s perfectly correct.

The phrasing “the mathematician who turned into a computer scientist” is awkward, wordy, and clumsy by comparison. While not black/white wrong, this poorly phrasing certainly makes us suspicious about choices (C) & (E).

Split #2: the “breakthrough”

Choice (A): here, we have an independent clause, and then in an appositive, a noun that summarizes the action of the clause. This is correct.

Choice (B): we have a clause, then “and the breakthrough …” Wait! Exactly what was the breakthrough? We have an idea, but the grammar does not make this identity clear. Grammar that leaves us guessing is not good grammar. This choice is incorrect.

Choice (C): here we have an independent clause, then a comma, then another independent clause, with no conjunction separating the two clauses. This mistake is called a comma splice. This choice is incorrect.

Choice (D): here, the wording “developing as a breakthrough the first computer algorithm” is odd—as if she could have just developed the first computer algorithm in an ordinary way, but instead, decided to develop it “as a breakthrough.” The exact meaning is unclear. Furthemore, the “breakthrough” is mentioned in the first clause, and a semicolon correctly separates the clauses, but the pronoun “this” is ambiguous in its antecedent. This choice is incorrect.

Choice (E): the wording “had the breakthrough development of the first computer algorithm” is awkward; also, it’s unclear which part the infinite “to aid Charles Babbage” modifies. Awkward + unclear = wrong. This choice is incorrect.

The only possible choice is (A).
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In the middle of the 19th century, mathematician turned computer scien &nbs [#permalink] 24 May 2018, 05:23
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