Welcome! Check out our free B-School Guides to learn how you compare with other applicants.
Login or Register
 

DS Yes or NO type Questions

This topic has 1 expert reply and 5 member replies
Bookmark
Previous Topic Next Topic
veenitj Just gettin' started! Default Avatar
Joined
13 Apr 2012
Posted:
14 messages
DS Yes or NO type Questions Post Fri Apr 13, 2012 10:53 am
Elapsed Time: 00:00
  • Lap #[LAPCOUNT] ([LAPTIME])
    Hi All,

    I am little confused with the Yes or No type questions in DS. If for e.g. statement A satisfies that the given condition is true => Yes, and the statement B also satisfies the gievn condition but is false => No. So what should be the answer should it be D.

    For e.g.

    Is 4+n/6 an integer ?

    (1) n is multiple of 6
    (2) n divided by 6 remainder is 1

    here with (1) we get Yes, with (2) No. is the answer D or A.

    Thanks in advance.
    VJ

    Need free GMAT or MBA advice from an expert? Register for Beat The GMAT now and post your question in these forums!
    killer1387 GMAT Destroyer! Default Avatar
    Joined
    03 Apr 2011
    Posted:
    583 messages
    Followed by:
    4 members
    Thanked:
    52 times
    Post Fri Apr 13, 2012 11:15 am
    whats the source of this question?

    GmatKiss GMAT Titan Default Avatar
    Joined
    26 Jul 2011
    Posted:
    2790 messages
    Followed by:
    41 members
    Thanked:
    205 times
    Target GMAT Score:
    700+
    GMAT Score:
    640
    Post Fri Apr 13, 2012 12:07 pm
    IMO: D

    iwillsurvive101 Rising GMAT Star
    Joined
    07 Nov 2011
    Posted:
    58 messages
    Thanked:
    1 times
    Test Date:
    Soon!
    Target GMAT Score:
    700
    Post Fri Apr 13, 2012 7:06 pm
    IMO, The two answer choices contradict each other

    1) n is multiple of 6

    => n/6 is an integra
    4(integra) + integer = integer

    YES

    2) n/6 = R1 => n is not divisible by 6 (if its divisible, remainder has to be 0)

    NO

    But 1) says n is divisible by 6, and 2 says n is not divisible by 6.

    IMO, the correct answer choice is D, but, again, the two answer choices should not contradict each other.

    Birottam Dutta GMAT Destroyer!
    Joined
    08 Jul 2009
    Posted:
    341 messages
    Followed by:
    19 members
    Thanked:
    211 times
    Test Date:
    24/04/2009
    GMAT Score:
    740
    Post Fri Apr 13, 2012 9:55 pm
    The two choices should ideally not contradict each other but there is a possibility that they may do so. In the event of the above happening, the choice shall be D or Both statements are sufficient for answering the question.

    -------

    If you feel like a thanks, just click it Smile

    Thanked by: veenitj

    GMAT/MBA Expert

    Brent@GMATPrepNow GMAT Instructor
    Joined
    08 Dec 2008
    Posted:
    3918 messages
    Followed by:
    607 members
    Thanked:
    1696 times
    GMAT Score:
    770
    Most Active Expert Most Responsive Expert Most Thanked Expert
    Post Sat Apr 14, 2012 7:23 am
    The two statements in a DS question can never contradict each other.
    As such, the original question could never be an official GMAT question.

    Here's a YouTube video I created that addresses how we can use this fact (that DS statements cannot contradict each other) to help us spot problems with our calculations: http://youtu.be/vkK9IHSV8yA

    Cheers,
    Brent

    _________________
    Brent Hanneson - GMAT Prep Now instructor
    - Check out GMAT Prep Now’s online course at http://www.gmatprepnow.com/
    - Use our video course in conjunction with Beat The GMAT's free 60-Day Study Guide
    - Watch hours of free videos on DS, RC and AWA
    - Our top 3 free videos:
    1) The Double Matrix method
    2) Calculating combinations in your head
    3) Managing your time on the GMAT

    Thanked by: veenitj
    Study Smart! Use Beat The GMAT’s FREE 60-Day Study Guide in conjunction with GMAT Prep Now’s video course and reach your target score in 2 months! With two money-back guarantees, you can try us out risk-free.
    veenitj Just gettin' started! Default Avatar
    Joined
    13 Apr 2012
    Posted:
    14 messages
    Post Tue Apr 17, 2012 11:09 am
    This questiond is from kaplan GMAT prep book. Thanks everyone for the input. I will remember that both statments should not contradict each other.


    Cheers

    VJ

    Best Conversation Starters
    1 varun289 38 topics
    2 killerdrummer 22 topics
    3 sana.noor 20 topics
    4 sanaa.rizwan 14 topics
    5 guerrero 14 topics
    See More Top Beat The GMAT Members...

    Most Active Experts
    1 image description Brent@GMATPrepNow

    GMAT Prep Now Teacher

    		 204 posts
    2 image description GMATGuruNY

    The Princeton Review Teacher

    		 136 posts
    3 image description Jim@StratusPrep

    Stratus Prep

    		 100 posts
    4 image description Anju@Gurome

    Gurome

    		 74 posts
    5 image description Jon@Admissionado

    Admissionado

    		 51 posts
    See More Top Beat The GMAT Experts