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  1. #1
    NO ShorTcUt hOmE... nyc_chirag's Avatar
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    Default [CAT 2010]The Official DI/LR Thread

    Hello ppl I am starting a new thread fer CAT10,lets make this the official thread fer the CAT10 DI/LR questions,the aim of this thread is to have healthy discussion on the DI/LR sets, lets make it a SUCCESS....some of the guidelines to be followed while posting...

    1. Each Problem set should be numbered like DI-Set-No
    For example, DI-Set-1

    2. Each set posted should be legible. Readers should not have problem reading the set. TRY to USE ONLY a DOC attachment.

    3. While replying, Kindly do not quote the full problem, just use the problem number.
    Example DI-Set-No- Date- My Answer

    4. The official solution to a problem set should be posted, before the next set is posted.

    I hope everyone can adhere to the rules, this will keep the thread clean, so that everyone can benefit max from it.

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  3. #2
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    Default DI/LR Set No-1

    The set is attached in a doc format....
    Attached Files
    • File Type: doc 1.doc (107.5 KB, 924 views)

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  5. #3
    Available on PM tusharsem's Avatar
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    Default

    DI Set 1-Mar 6th

    My answers

    1. d
    2. b
    3. c
    4. b
    PGDIM NITIE Mumbai 2011-13

    CAT 2011 : Quant |DI/LR/DS

    New thread : Word Usage

  6. #4
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    Post

    1.a
    2.b
    3.b
    4.b

    As per my calculations
    "Intelligence is the wife, imagination is the mistress, memory is the servant. "

  7. #5
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    Default Official sol di/lr-1

    1)a
    2)b
    3)c
    4)b

  8. #6
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    Default DI/LR Set No-02

    here is the 2nd set,.....c`on ppl would like to see more attempts...
    Attached Files
    • File Type: doc 2.doc (184.0 KB, 475 views)

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  10. #7
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    Default

    Quote Originally Posted by nyc_chirag View Post
    1)a
    2)b
    3)c
    4)b
    Hi can u give detailed solutions or atleast correct and fast approach
    "Intelligence is the wife, imagination is the mistress, memory is the servant. "

  11. #8
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    Default

    Quote Originally Posted by fundoosunny View Post
    Hi can u give detailed solutions or atleast correct and fast approach
    bro i dont have the detailed solutions of the set,just the answers,am also wrking out the problem just like everyone else,incase I have the solution fer future sets i will post them...the whole point of this thread is Discussion,cooperation to get the final answer....
    ----waise u gt only the 3rd ques wrong....
    lemme explain that..see the scooter reaches the D3 at 3pm and the car reaches at 1:40pm
    ...let the dis btw D3 and D4 be Y..

    frm D1 to D3 car takes 4hrs(9:40-1:40)
    frm d1 to d3 scooter takes 6hrs(9:00-3:00)

    now car takes 20 min to reach D4 frm D3(since Car and truck reach D4 at 2:00,simultaneously)
    therefore fer scooter to reach D4 =?
    4/6=20/?(since the speeds are constant)
    ?=30 min
    therefore the scooter reaches D4 at 3:00+:30'=3:30....

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    Default

    DI-SET 2 I m not able to get the logic rite can u post the solution. .
    I will Rise and rise until I can clear CAT.

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    Default

    Quote Originally Posted by sbharathindia View Post
    DI-SET 2 I m not able to get the logic rite can u post the solution. .
    ans keys will be posted after a sufficient no of ppl attempt it...

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    Default

    Answers

    1.) a
    2.) d...even if he crosses 60 vehicles going in the same direction, then
    in that time, 10 more vehicles will enter from opposite side..
    3.) c
    4.) c

  15. #12
    Master fundoosunny's Avatar
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    Smile

    thanx chirag
    "Intelligence is the wife, imagination is the mistress, memory is the servant. "

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    Default Di-set 2

    1) a
    2) d
    3) c
    4) c

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    Available on PM tusharsem's Avatar
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    Default

    Quote Originally Posted by fundoosunny View Post
    thanx chirag
    Please use the 'Thanks' button for such posts. Lets us improve the readability of this thread.
    PGDIM NITIE Mumbai 2011-13

    CAT 2011 : Quant |DI/LR/DS

    New thread : Word Usage

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  19. #15
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    Default di set 2

    My Answers----(these are nt the official solutions)...
    1)a
    2)d
    3)c
    4)c

    PS-these are nt the official ans,.....will post the official solutions in the evening,and then we can discuss the solutions..

  20. #16
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    Default Official sol-di/lr-02

    1)a
    2)d
    3)c
    4)c

  21. #17
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    Default

    DI Set 2

    Just tried the set, have got the 1st three questions, can someone explain the 4th one ?
    PGDIM NITIE Mumbai 2011-13

    CAT 2011 : Quant |DI/LR/DS

    New thread : Word Usage

  22. #18
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    Default

    Quote Originally Posted by tusharsem View Post
    DI Set 2

    Just tried the set, have got the 1st three questions, can someone explain the 4th one ?
    hey tushar,yeah man on solving again am getting the ans as opt a)..ie-the car E will catch up wid C at the mid pt of the bridge...what u getting?

    approach-speed of B=20kmph,C=30kmph,E=60kmph
    since E starts 2 min after C..in that time dis covered by C=30*2/60=1km
    1km covered by E in =1/30hrs
    therefore dis covered by E in this time=60*1/30=2km...which is the mid pt of the bridge...hence opt a

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  24. #19
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    Default

    DI Set 2

    Explanation please. . .
    Last edited by tusharsem; 07-Mar-10 at 11:52 PM. Reason: Please read the rules of the forum
    I will Rise and rise until I can clear CAT.

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    Quote Originally Posted by sbharathindia View Post
    Explanation please. . .
    concept...speed of the vehicles is in inverse proportion to (cars crossed from opp side)-(cars crossed from the same side),since no of cars on the lane remain a constant=60

    clearly A is the slowest from the graph(using the above concept)
    fer rest calculate the speed of the individual cars...
    Speed of B=20kmph(allows 120 cars to be crossed),C=30kmph,E=60kmph...
    just solve the rest of the ques on this concept...but i think the ans fer 4th ques should be opt a)....

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