By 1940, the pilot Jacqueline Cochran held seventeen official

Question

By 1940, the pilot Jacqueline Cochran held seventeen official national and international speed records, and she earned them at a time when aviation was still so new for many of the planes she flew to be of dangerously experimental design.

Option A
Option B
Option C
Option D
Option E

(This question is from Official Guide. Therefore, because of copyrights, the complete question cannot be copied here. The question can be accessed at GMAT Club)

Solution

Sentence Analysis

The sentence says:

The pilot JC had 17 official speed records by 1940. She earned these records at a time when aviation was so new that many of the planes she flew were dangerous to fly.

The sentence has one error: “aviation was still so new for many of the planes she flew” communicates that aviation was new for the planes!! Logically, it seems we want to use ‘so X that Y” idiom.

Option Analysis

(A) Incorrect. For the reason mentioned above.

(B) Incorrect. For the following reasons:

  1. Repeats the meaning and idiomatic error of the original sentence.
  2. ‘for’, a preposition, is followed by a clause “many of the planes were…”. A preposition can never be followed by a clause.

(C) Incorrect. For the following reasons:

  1. ‘where’ refers to a place, not ‘time’. Therefore, its use is incorrect.
  2. The use of demonstrative pronoun ‘these’ without a noun following it is not recommended. The demonstrative pronouns ‘this’ and ‘these’ need to be followed by a noun e.g. this idea, these records etc.

(D) Incorrect. For the following reasons:

  1. The structure ‘so new such that’ is incorrect. It should be ‘so new that…”.
  2. Given the context of the sentence, the correct word for ‘time’ is ‘when’, not ‘in which’. (OG explanation says so and I agree)

(E) Correct. ‘earned’ acts as a verb-ed modifier correctly modifying ‘records’. Everything is fine with this option.

About Chiranjeev Singh

An Alumnus of IIM Ahmedabad and with scores of 780 (2017) and 770 (2013) on GMAT and 99.98%ile on CAT, Chiranjeev is one of the most qualified GMAT tutors in India. Chiranjeev has earlier served as Director of Curriculum at e-GMAT. Chiranjeev has been helping students ace GMAT since 2012. He follows a concept-based methodology to teaching GMAT and is very committed to student success. You may contact him for any private GMAT tutoring needs at CJ@GMATwithCJ.com. He conducts online sessions for students across the world.

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