48÷2(9+3)

Discussion in 'Random Thoughts' started by Exit9, Apr 9, 2011.

  1. wa bluska wica

    wa bluska wica Pedestrian

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    which produces 288, since the only add/sub is in the brackets

    your word is bond

    :sunny:
     
  2. zengizmo

    zengizmo Ignorant Slut HipForums Supporter

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    That sums it up. Whoever wrote this problem was trying to start an argument. :D It's true that the order of operations would say that division and multiplication are equal priority and therefore should be done in order, and 2(9+3) is technically equivalent to 2 * (9+3), which would give the answer of 288. However it's also true that the form 2(9+3) tends to imply the form 2x, where x is a variable, which in turn implies the operation is intended to be 48/2x, where x = 9+3, and therefore the answer would be 2.

    Bottom line is, anybody who would leave a problem in that form is just asking for trouble. People who are seriously interested in clear communication as opposed to troublemaking use parentheses to make their intentions clear. ;)
     
  3. Bonkai

    Bonkai Later guys

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    this felt so appropriate
     

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