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can anyone explain the answer for this question? I am torn between D and E
D is a great option but E is the main point of discussion, if we can dent E, then whole argument falls but with D, there are other factors also in place like fuel efficiency + 1 yr delivery delay for competitors.
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With less than 20 per cent market share, Cherico Airline has been steadily losing ground to other competing airlines. However, the recent addition of the Dreamliner aircraft to its fleet might just turn the tide for Cherico. The Dreamliner claims 15 per cent more fuel efficiency than competing similar aircrafts and cheaper maintenance costs. With the induction of these planes, Cherico will get a competitive advantage over its more aggressive rivals, which will be saddled with older aircrafts and get deliveries of their own Dreamliners only after one year.

Which of the following would be most useful to determine in order to evaluate the argument?


(A) Whether it is possible for Cherico to cut costs even more by reducing the number of stewards in the air plane

(B) Whether it is possible for Cherico to improve the Dreamliner’s fuel efficiency even further by restricting the amount of luggage passengers can carry

(C) Whether Cherico can increase its revenues by charging for the meals it serves in its aircrafts

(D) Whether the Dreamliner’s maintenance costs will be substantially lower than those of Cherico’s rivals’ aircrafts

(E) Whether it will be possible for Cherico’s rivals to somehow get deliveries of their own Dreamliners expedited



Official Explanation



Answer: E

The whole argument is based on the assumption that Cherico’s competitors will not be able to get the Dreamliner before 2014. If there was some way in which the competitors’ could also get their hands on the Dreamliner earlier, then Cherico’s competitive advantage will get neutralized. E mentions this point and is the correct answer.

(A) It is possible that other airlines could also reduce the number of stewards in their airplanes. The argument is only concerned with the competitive advantage accruing due to the Dreamliner.

(B) This may be an added advantage but the whole point of the argument is that the competitors will not be able to get their hands on the Dreamliner before 2014.

(C) This has no bearing on the competitive advantage accruing due to the Dreamliner.

(D) The argument clearly states that this will be the case so this basically repeats what is already stated in the argument.

(E) The correct answer.
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is E the right answer choice because D misses the fuel efficiency point ?
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Hi KarishmaB MartyMurray gmatophobia

This does not seem to be a good question

It's written already that "get deliveries of their own Dreamliners only after one year". So now if we are saying that they can expediate the process and can get delivery before 1 year so we are going against the premise.

Can someone explain if my thinking is correct?
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This does not seem to be a good question

It's written already that "get deliveries of their own Dreamliners only after one year". So now if we are saying that they can expediate the process and can get delivery before 1 year so we are going against the premise.

Can someone explain if my thinking is correct?
Your thinking is correct. The question is busted.
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The correct answer is:
(E) Whether it will be possible for Cherico’s rivals to somehow get deliveries of their own Dreamliners expedited

Explanation:
The argument is that Cherico Airlines will gain a competitive advantage because:
  1. It is getting Dreamliners now.
  2. Dreamliners are more fuel-efficient and have cheaper maintenance.
  3. Rivals won't get their Dreamliners for another year, so Cherico will enjoy a temporary edge.
The strength of this argument depends on how long Cherico will have this advantage. If rivals can somehow get their Dreamliners earlier than expected, then the competitive advantage shrinks or disappears.

✅ Why E is the best answer:
  • It addresses the core assumption: that Cherico will enjoy exclusive benefits for a full year.
  • If rivals can expedite delivery, then the competitive advantage is short-lived, and the argument weakens.
  • If they cannot expedite, then Cherico does in fact gain an edge, at least for a while.
This makes (E) the most useful for evaluating the strength of the argument.

❌ Elimination of other options:
(A) Whether it is possible for Cherico to cut costs even more by reducing the number of stewards
  • ❌ Irrelevant to Dreamliner advantage. It’s about staffing, not about the aircraft or the competition.
(B) Whether Cherico can improve Dreamliner’s fuel efficiency by limiting luggage
  • ❌ Hypothetical improvement, and not tied to the core claim of competitive advantage from the Dreamliner as it is now.
(C) Whether Cherico can increase revenue by charging for meals
  • ❌ Revenue strategies unrelated to Dreamliner advantage. Doesn’t help us assess whether Dreamliner gives Cherico an edge.
(D) Whether Dreamliner’s maintenance costs are lower than rivals' aircrafts
  • ❌ Seems relevant, but already assumed in the argument ("cheaper maintenance costs"). Unless this assumption is challenged, it doesn’t advance the evaluation much.
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