• Varsity Tutors
    Award-winning private GMAT tutoring
    Register now and save up to $200

    Available with Beat the GMAT members only code

    MORE DETAILS
    Varsity Tutors
  • Target Test Prep
    5-Day Free Trial
    5-day free, full-access trial TTP Quant

    Available with Beat the GMAT members only code

    MORE DETAILS
    Target Test Prep
  • PrepScholar GMAT
    5 Day FREE Trial
    Study Smarter, Not Harder

    Available with Beat the GMAT members only code

    MORE DETAILS
    PrepScholar GMAT
  • Veritas Prep
    Free Veritas GMAT Class
    Experience Lesson 1 Live Free

    Available with Beat the GMAT members only code

    MORE DETAILS
    Veritas Prep
  • Magoosh
    Magoosh
    Study with Magoosh GMAT prep

    Available with Beat the GMAT members only code

    MORE DETAILS
    Magoosh
  • Kaplan Test Prep
    Free Practice Test & Review
    How would you score if you took the GMAT

    Available with Beat the GMAT members only code

    MORE DETAILS
    Kaplan Test Prep
  • e-gmat Exclusive Offer
    Get 300+ Practice Questions
    25 Video lessons and 6 Webinars for FREE

    Available with Beat the GMAT members only code

    MORE DETAILS
    e-gmat Exclusive Offer
  • Economist Test Prep
    Free Trial & Practice Exam
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    Economist Test Prep
  • EMPOWERgmat Slider
    1 Hour Free
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    EMPOWERgmat Slider

Airport official: Local residents have been complaining that

This topic has 1 expert reply and 2 member replies
richachampion Legendary Member
Joined
21 Jul 2015
Posted:
678 messages
Followed by:
24 members
Thanked:
31 times
Test Date:
∞ →
Target GMAT Score:
760
GMAT Score:
740

Airport official: Local residents have been complaining that

Post Fri Jul 29, 2016 2:49 am
Elapsed Time: 00:00
  • Lap #[LAPCOUNT] ([LAPTIME])
    Airport official: Local residents have been complaining that night fights into Plainsville airport disturb their sleep and should be sharply reduced in number. This complaint is completely unreasonable -there have been night flights coming into the airport from the very beginning, twenty years ago, and these residents should have taken that fact into account when buying their homes.

    Which of the following is an assumption on which the airport argument depends?

    A. There are fewer night flights now than there were originally.
    B. The residents who are complaining have been in their current homes fewer than twenty years.
    C. The residents who are complaining are ignoring the benefits they gain from the presence of the airport.
    D. The economic success of the airport depends entirely on the existence of the night flights.
    E. People buying houses in Plainville all avoid buying houses near the airport if they can.

    OA: B

    Need free GMAT or MBA advice from an expert? Register for Beat The GMAT now and post your question in these forums!
    richachampion Legendary Member
    Joined
    21 Jul 2015
    Posted:
    678 messages
    Followed by:
    24 members
    Thanked:
    31 times
    Test Date:
    ∞ →
    Target GMAT Score:
    760
    GMAT Score:
    740
    Post Fri Jul 29, 2016 2:52 am
    Let's debate Why E can't be the correct answer.

    joealam1 Senior | Next Rank: 100 Posts Default Avatar
    Joined
    14 Aug 2016
    Posted:
    74 messages
    Thanked:
    1 times
    Target GMAT Score:
    740
    GMAT Score:
    670
    Post Sun Aug 14, 2016 8:41 am
    Hi RichaChampion,

    i think E is wrong because the language is too extreme "all" is not needed.
    Plus if you negate it it would be : "not all people buying houses in plainville avoid buying houses near the airport if they can", and this won't weaken the conclusion

    I assume we can look at it this way.

    Regards,

    Joe

    Post Wed Aug 17, 2016 12:18 pm
    richachampion wrote:
    Let's debate Why E can't be the correct answer.
    Premise: Night flights have been coming into the airport for the past twenty years, a fact that local residents should have taken into account when buying their homes.
    Conclusion: It is unreasonable for local residents to complain that night fights are disturbing their sleep.

    Apply the NEGATION TEST.
    When the correct answer choice is negated, the conclusion will be invalidated.
    In other words, the negation of the correct answer choice will show that it is REASONABLE for local residents to complain about noise from night flights.

    B, negated:
    The residents who are complaining have been in their current homes for twenty years or longer.
    Since night flights have been coming into airport only for the last 20 years, residents who have been in their current homes longer than 20 years could NOT have taken night flights into account when purchasing their homes, making it REASONABLE for them to complain about noise from night flights.
    Since the negation of B invalidates the conclusion, B is the correct assumption: the answer choice that MUST BE TRUE for the conclusion to be valid.

    The correct answer is B.

    E, negated:
    People buying houses in Plainville do not all avoid buying houses near the airport.
    Here, at least one person does not avoid buying a house near the airport.
    Since it remains true that local residents should have taken night flights into account when purchasing their homes, the negation of E does not make it reasonable for these residents to complain about noise from night flights.
    Eliminate E.

    _________________
    Mitch Hunt
    GMAT Private Tutor
    GMATGuruNY@gmail.com
    If you find one of my posts helpful, please take a moment to click on the "Thank" icon.
    Available for tutoring in NYC and long-distance.
    For more information, please email me at GMATGuruNY@gmail.com.

    Free GMAT Practice Test How can you improve your test score if you don't know your baseline score? Take a free online practice exam. Get started on achieving your dream score today! Sign up now.

    Best Conversation Starters

    1 Vincen 180 topics
    2 lheiannie07 61 topics
    3 Roland2rule 61 topics
    4 ardz24 40 topics
    5 VJesus12 14 topics
    See More Top Beat The GMAT Members...

    Most Active Experts

    1 image description Brent@GMATPrepNow

    GMAT Prep Now Teacher

    160 posts
    2 image description Rich.C@EMPOWERgma...

    EMPOWERgmat

    102 posts
    3 image description GMATGuruNY

    The Princeton Review Teacher

    99 posts
    4 image description Jay@ManhattanReview

    Manhattan Review

    86 posts
    5 image description Matt@VeritasPrep

    Veritas Prep

    80 posts
    See More Top Beat The GMAT Experts