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value of x + y

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sanju09 GMAT Instructor
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value of x + y Post Wed Sep 15, 2010 1:03 am
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  • Lap #[LAPCOUNT] ([LAPTIME])
    What is the value of x + y?

    [1] x y = 24.

    [2] x/y = 8/3.



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    alivapriyada Really wants to Beat The GMAT!
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    Post Wed Sep 15, 2010 2:29 am
    Quote:
    What is the value of x + y?

    [1] x y = 24.

    [2] x/y = 8/3
    .

    stmnt 1- xy=24
    we cannot determine x+y
    Stmnt2 - x/y=8/3
    so x=8y/3
    or x+y=8y/3+y=11y/3
    not sufficient.

    combining both statements even wont result in any specific answer
    SO IMO E
    waiting for the OA and a better expanation!!

    GMAT/MBA Expert

    sanju09 GMAT Instructor
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    Post Wed Sep 15, 2010 2:56 am
    alivapriyada wrote:
    Quote:
    What is the value of x + y?

    [1] x y = 24.

    [2] x/y = 8/3
    .

    stmnt 1- xy=24
    we cannot determine x+y
    Stmnt2 - x/y=8/3
    so x=8y/3
    or x+y=8y/3+y=11y/3
    not sufficient.

    combining both statements even wont result in any specific answer
    SO IMO E
    waiting for the OA and a better expanation!!
    This is right that no statement alone is sufficient here. Let’s take the two together

    Put y = 3 x/8 from [2] in [1], a quadratic in x would be obtained, giving out two results for x; or if you put x = 8 y/3 from [2] in [1], a quadratic in y would be obtained, giving out two results for y. Hence, together too, insufficient

    E is right, is your wait over?

    _________________
    “The most important thing in business is honesty, integrity, hard work… family… never forgetting where we came from.”

    “The loudest one in the room is the weakest one in the room.”

    ~Frank Lucas

    facebook

    https://www.facebook.com/pages/The-Princeton-Review-Lucknow/153205671537507


    Sanjeev K Saxena
    Quantitative Instructor
    The Princeton Review - Manya Abroad
    Lucknow-226001
    Tel: +91-522- 6002178
    Cell:+91-9670999928
    www.manyagroup.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.
    alivapriyada Really wants to Beat The GMAT!
    Joined
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    Post Wed Sep 15, 2010 3:00 am
    sanju09 wrote:
    alivapriyada wrote:
    Quote:
    What is the value of x + y?

    [1] x y = 24.

    [2] x/y = 8/3
    .

    stmnt 1- xy=24
    we cannot determine x+y
    Stmnt2 - x/y=8/3
    so x=8y/3
    or x+y=8y/3+y=11y/3
    not sufficient.

    combining both statements even wont result in any specific answer
    SO IMO E
    waiting for the OA and a better expanation!!
    This is right that no statement alone is sufficient here. Let’s take the two together

    Put y = 3 x/8 from [2] in [1], a quadratic in x would be obtained, giving out two results for x; or if you put x = 8 y/3 from [2] in [1], a quadratic in y would be obtained, giving out two results for y. Hence, together too, insufficient

    E is right, is your wait over?
    Smile Smile yes!!!!

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