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14 Feb 2022, 02:30
Kudos
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
73% (01:18) correct
27%
(01:29)
wrong
based on 270
sessions
History
Date
Time
Result
Not Attempted Yet
No less impressive than the invention of the light bulb by Thomas Edison, widely considered the greatest inventor of his time, was the invention of the electric motor and the discovery of alternating current by Nikola Tesla, Edison’s archrival during the late 19th and early 20th century.
(A) was the invention of the electric motor and the discovery of alternating current by Nikola Tesla,
(B) was the invention of the electric motor, the discovery of alternating current by Nikola Tesla, who was
(C) had been invention of the electric motor and the discovery of alternating current by Nikola Tesla, who was
(D) were the invention of the electric motor, as well as the discovery of alternating current, by Nikola Tesla,
(E) were the invention of the electric motor and the discovery of alternating current by Nikola Tesla,
(A) was the invention of the electric motor and the discovery of alternating current by Nikola Tesla,
(B) was the invention of the electric motor, the discovery of alternating current by Nikola Tesla, who was
(C) had been invention of the electric motor and the discovery of alternating current by Nikola Tesla, who was
(D) were the invention of the electric motor, as well as the discovery of alternating current, by Nikola Tesla,
(E) were the invention of the electric motor and the discovery of alternating current by Nikola Tesla,
gloomybison
Joined: 30 Mar 2021
Last visit: 02 Jan 2024
Posts: 223
Given Kudos: 93
Location: Turkey
Schools: Yale '26 (A) LBS '26 (WL) Booth '26 (A) Columbia CBS'26 (A) Kellogg '26 (A) Tuck '26 (A) Wharton '26 (D) Sloan '26 (D)
GMAT 1: 720 Q51 V36
GPA: 3.69
Schools: Yale '26 (A) LBS '26 (WL) Booth '26 (A) Columbia CBS'26 (A) Kellogg '26 (A) Tuck '26 (A) Wharton '26 (D) Sloan '26 (D)
GMAT 1: 720 Q51 V36
Posts: 223
14 Feb 2022, 06:11
Kudos
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(A) was the invention of the electric motor and the discovery of alternating current by Nikola Tesla,
If you inverse it you will notice that the structure is as follows; "the invention of the electric motor and the discovery of alternating current by Nikola Tesla was no less impressive than..."
"the invention... and the discovery..." is a compound subject, which should have plural verb "were" instead of "was"
(B) was the invention of the electric motor, the discovery of alternating current by Nikola Tesla, who was
the discovery of alternating current seems like an appositive phrase modifying invention of the electric motor; however note that invention of something is not a discovery of something. In other words you discover something and you invent a device accordingly. Illogical meaning
(C) had been invention of the electric motor and the discovery of alternating current by Nikola Tesla, who was
I don't think there is any particular reason to use past perfect "had been". Past perfect is generally used to note events that occurred prior to another event. Here we don't really have another finite verb to give a time sequence
(D) were the invention of the electric motor, as well as the discovery of alternating current, by Nikola Tesla,
Although using "as well as" wouldn't be a completely fatal error having an "and" is more suitable. But the crucial point here is "as well as" plays an additive role, meaning that it doesn't build a compound subject here. So our only subject here is "the invention" thereby we should use "was" instead of "were"
(E) were the invention of the electric motor and the discovery of alternating current by Nikola Tesla,
Correct
If you inverse it you will notice that the structure is as follows; "the invention of the electric motor and the discovery of alternating current by Nikola Tesla was no less impressive than..."
"the invention... and the discovery..." is a compound subject, which should have plural verb "were" instead of "was"
(B) was the invention of the electric motor, the discovery of alternating current by Nikola Tesla, who was
the discovery of alternating current seems like an appositive phrase modifying invention of the electric motor; however note that invention of something is not a discovery of something. In other words you discover something and you invent a device accordingly. Illogical meaning
(C) had been invention of the electric motor and the discovery of alternating current by Nikola Tesla, who was
I don't think there is any particular reason to use past perfect "had been". Past perfect is generally used to note events that occurred prior to another event. Here we don't really have another finite verb to give a time sequence
(D) were the invention of the electric motor, as well as the discovery of alternating current, by Nikola Tesla,
Although using "as well as" wouldn't be a completely fatal error having an "and" is more suitable. But the crucial point here is "as well as" plays an additive role, meaning that it doesn't build a compound subject here. So our only subject here is "the invention" thereby we should use "was" instead of "were"
(E) were the invention of the electric motor and the discovery of alternating current by Nikola Tesla,
Correct
14 Feb 2022, 07:14
Kudos
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My answer is (E). It took me 1 minute.
Inversion is used in all five options.
(A) The subject (the invention and the discovery) is plural. SVA error.
(B) ”the discovery of alternating current by Nikola Tesla“ cannot be appositive for "the invention of the electric motor”, so the two noun phrases are not properly connected by conjunctions.
(C) Past perfect tense, in the presence of a simple past tense (that Tesla was Edison's archrival), indicates that those impressive inventions took place before.
(D) The subject ("the invention of the electric motor") is singular. SVA error.
Inversion is used in all five options.
(A) The subject (the invention and the discovery) is plural. SVA error.
(B) ”the discovery of alternating current by Nikola Tesla“ cannot be appositive for "the invention of the electric motor”, so the two noun phrases are not properly connected by conjunctions.
(C) Past perfect tense, in the presence of a simple past tense (that Tesla was Edison's archrival), indicates that those impressive inventions took place before.
(D) The subject ("the invention of the electric motor") is singular. SVA error.
