Tuesday, September 23, 2008

Problem Of The Week 21

if ||x-2|-1|<6 and ||y-1|-2|<9 where x and y are integers, then find the range of x-2y?


Tipster: When the equations look too complex, option hunting is a good method
Posted by Unknown at 3:30 AM
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5 comments:

  1. Celebrating LifeSeptember 23, 2008 at 6:44 PM

    From -26 to 26. -4<=x<=8 and -9<=y<=11

    ReplyDelete
  2. outtimedSeptember 23, 2008 at 10:11 PM

    yeah right !

    ReplyDelete
  3. milindSeptember 26, 2008 at 11:12 AM

    implex bhai...
    I'm solving but getting answer as x from -5 to 9 and y from -10 to 12
    On checking with boundary values i know its incorrect.
    But m not getting the approach to open the second mod.
    Please explain.

    ReplyDelete
  4. outtimedSeptember 26, 2008 at 11:48 AM

    i think you have got correct value ..
    its simple buddy

    ReplyDelete
  5. anudeep kansalSeptember 30, 2008 at 11:45 AM

    hey i got the range as -5<x<9 and -10<y<12
    so my range comes as -29 to 29. i think this is correct because the question states the expressions have values < 6 and < 9 and not <=6 or <=9. please inform me if i'm wrong. i'm new to ths blog. please help me if i'm wrong

    ReplyDelete

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