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Optimisation Problem Solving

  1. May 24, 2010 #1
    A rectangular parcel with square ends is tied up with string, which passes once around the parcel lengthwise and once crosswise. If the volume of the parcel is 2322m3, find its dimensions if the length of string used to tie it is to be minimised.

    V = lwh = 2322

    Let D be the dimensions function

    D = 2l + 2h + 4w

    I am a bit stuck here now because there are three variables and I can't use simultaneous equations to then make D with respect to l or h or w.

    Did I interpret the question wrong?
     
  2. jcsd
  3. May 24, 2010 #2
    "A rectangular parcel with square ends" ....
     
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