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# By the late 1940s, ENIAC, the first electronic digital computer was ab

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Math Expert
Joined: 02 Sep 2009
Posts: 57297
By the late 1940s, ENIAC, the first electronic digital computer was ab  [#permalink]

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01 Aug 2019, 01:49
1
1
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Difficulty:

35% (medium)

Question Stats:

65% (01:22) correct 35% (01:29) wrong based on 124 sessions

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By the late 1940s, ENIAC, the first electronic digital computer was able to compute a ballistics trajectory in about 30 seconds, and it was much less time than the 20 hours required to perform the same calculations with a desk calculator.

A. computer was able to compute a ballistics trajectory in about 30 seconds, and it was
B. computer, which was able to compute a ballistics trajectory in about 30 seconds, was
C. computer, was able to compute ballistics trajectory in about 30 seconds,
D. computer was able to compute a ballistics trajectory in about 30 seconds, being
E. computer, and was to compute ballistics trajectory in about 30 seconds, and was

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Manager
Joined: 24 Feb 2019
Posts: 50
By the late 1940s, ENIAC, the first electronic digital computer was ab  [#permalink]

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01 Aug 2019, 06:53
1
I believe the correct answer is C

A. computer was able to compute a ballistics trajectory in about 30 seconds, and it was
--> This clause should serve as a modifier, but here contains the action.
--> "and" should not be used. We're adding to the previous clause
--> "it" refers to what?

B. computer, which was able to compute a ballistics trajectory in about 30 seconds, was
--> "which" is not needed
--> "was" has a wrong subject

C. computer, was able to compute ballistics trajectory in about 30 seconds,
--> correct IMO

D. computer was able to compute a ballistics trajectory in about 30 seconds, being
--> Same as A)1
--> "Being" is wrong.

E. computer, and was to compute ballistics trajectory in about 30 seconds, and was
--> "and was" is wrong, because we haven't finished a clause yet.
--> second "and was" wrong also for above-cited reasons.
Intern
Joined: 08 Jun 2019
Posts: 24
Re: By the late 1940s, ENIAC, the first electronic digital computer was ab  [#permalink]

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01 Aug 2019, 09:13
EpilepticLearner wrote:
I believe the correct answer is C

A. computer was able to compute a ballistics trajectory in about 30 seconds, and it was
--> This clause should serve as a modifier, but here contains the action.
--> "and" should not be used. We're adding to the previous clause
--> "it" refers to what?

B. computer, which was able to compute a ballistics trajectory in about 30 seconds, was
--> "which" is not needed
--> "was" has a wrong subject

C. computer, was able to compute ballistics trajectory in about 30 seconds,
--> correct IMO

D. computer was able to compute a ballistics trajectory in about 30 seconds, being
--> Same as A)1
--> "Being" is wrong.

E. computer, and was to compute ballistics trajectory in about 30 seconds, and was
--> "and was" is wrong, because we haven't finished a clause yet.
--> second "and was" wrong also for above-cited reasons.

Agreed
Intern
Joined: 27 Nov 2017
Posts: 17
Re: By the late 1940s, ENIAC, the first electronic digital computer was ab  [#permalink]

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01 Aug 2019, 11:18
1
IMO C
Option A: ENIAC - Subject, No verb - Incorrect
Option B: ENIAC was less than 20 hours- Incorrect Meaning
Option C: ENIAC was able to compute.....30 seconds, much less than....- Correct Subject-Verb and Modifier
Option D: ENIAC,......., being much less than 30 seconds - Incorrect Meaning
Option E: ENIAC,.... and was able to compute - No verb and incorrect usage of AND
Intern
Joined: 31 Mar 2018
Posts: 30
Re: By the late 1940s, ENIAC, the first electronic digital computer was ab  [#permalink]

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03 Aug 2019, 09:15
Bunuel MartyTargetTestPrep daagh sayantanc2k GMATNinja

why comma is used to connect verb with the subject?
CEO
Joined: 15 Jul 2015
Posts: 2975
Location: India
GMAT 1: 780 Q50 V51
GRE 1: Q170 V169
Re: By the late 1940s, ENIAC, the first electronic digital computer was ab  [#permalink]

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04 Aug 2019, 20:51
Pankaj1Agarwal wrote:
Bunuel MartyTargetTestPrep daagh sayantanc2k GMATNinja

why comma is used to connect verb with the subject?
The subject is ENIAC.

By the late 1940s, ENIAC, the first electronic digital computer, was able to compute...

The first electronic... is a modifier.
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Re: By the late 1940s, ENIAC, the first electronic digital computer was ab   [#permalink] 04 Aug 2019, 20:51
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