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# Auditor: XYZ, a construction company, purchased

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Director
Joined: 30 Jan 2016
Posts: 824
Location: United States (MA)
Auditor: XYZ, a construction company, purchased  [#permalink]

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10 Dec 2017, 10:54
2
00:00

Difficulty:

55% (hard)

Question Stats:

62% (02:08) correct 38% (02:36) wrong based on 119 sessions

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Auditor: XYZ, a construction company, purchased 20 new trucks 3 years ago, and there is no record of any of those trucks being sold last year. Records indicate, however, that XYZ sold off all of its diesel-powered trucks last year. We can thus conclude that none of the 20 trucks purchased 3 years ago were diesel powered.

Which one of the following is an assumption required by the auditor's reasoning?

(A) All of the trucks that XYZ sold last year were diesel powered.
(B) XYZ did not purchase any used trucks 3 years ago.
(C) XYZ did not purchase any new trucks since it purchased the 20 trucks 3 years ago.
(D) None of the 20 trucks was sold before last year.
(E) XYZ no longer owns any trucks that it purchased n1ore than 3 years ago.

Source: LSAT

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Manager
Joined: 07 Sep 2013
Posts: 62
Re: Auditor: XYZ, a construction company, purchased  [#permalink]

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10 Dec 2017, 15:09
Let's say 20 trucks were purchased in year 2014(3 years ago) and based on the data of last year, passage is concluding that none of the 20 trucks were diesel based because none of the diesel based trucks were sold last year in 2016

So what about between 2014 and 2016. What if all 20 trucks sold that time, then also data presented would hold true and conclusion wrong.

So, D IMO.

Suggestions welcome

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Joined: 20 Feb 2017
Posts: 165
Location: India
Concentration: Operations, Strategy
WE: Engineering (Other)
Re: Auditor: XYZ, a construction company, purchased  [#permalink]

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10 Dec 2017, 21:46
A: does nothing beside restating the premise.
B: used trucks ?? not required or extraneous information. (classical wrong answer)
C: We cannot be sure that if the trucks sold were from the three years ago or may be from older ones. There is possibility of both and hence its not the correct answer choice.
D. CORRECT . Use Negation : some of the 20 trucks was sold before last year. It weakens the conclusion
E. Irrelevant
Check for keywords , that's the key. IMO
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Re: Auditor: XYZ, a construction company, purchased &nbs [#permalink] 10 Dec 2017, 21:46
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