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Simple Arithmatic | 8 Dec, 2009

Discussion in '$1 Daily Competition' started by pankaj.sea, Dec 7, 2009.

  1. pankaj.sea

    pankaj.sea New Member

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    Two Numbers Are Such That Their Difference, The Sum And The Product Are In The Ratio 1:7:36. Find The Numbers And Explain! :cuss:
     
  2. shabbir

    shabbir Administrator Staff Member

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    Approved.
     
  3. venami

    venami New Member

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    x = 12
    y = 9

    x-y = 3
    x+y = 21
    xy = 108

    so x-y:x+y:xy => 1:7:36
     
  4. venami

    venami New Member

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    From the question we can say,

    x-y x+y xy
    --- = ---- = ---- = r
    1 7 36

    From this we get three equations,

    x - y = r
    x + y = 7r
    xy = 36r

    By solving these equations, we get the value of r=3, x=12, and y=9.
     
  5. venami

    venami New Member

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    In the previous post, the first equation should be like this:

    [(x-y)/1] = [(x+y)/7] = [(xy)/36] = r

    It didn't display correctly, so I am reposting that equation here.
     
  6. pankaj.sea

    pankaj.sea New Member

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    Hi Venami...
    You are absolutely correct!
    Congrats...
    ;)
     
  7. sameer_havakajoka

    sameer_havakajoka New Member

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    hehehe..gud maths....congrs
     
  8. venami

    venami New Member

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    Thanks ;)
     
  9. pankaj.sea

    pankaj.sea New Member

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    You Welcome Man... :D
     
  10. nimesh

    nimesh New Member

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    Congrats Venami. Nice calculation :)
     

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