The elevator problem

The elevator problem

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Four people enter an elevator that can carry 380kg. So that the alarm does not sound, which would stop the elevator due to excess weight, its total weight has to be calculated. To know we have the following data:

  • Pedro is the one who weighs the most; if each of them weighed as much as he, the alarm would sound.
  • Alex is the lightest; The elevator could hold up to five like him.
  • David weighs 14 kg less than Pedro, but only 6 less than Daniel.
  • Daniel weighs 17kg more than Alex.
  • The weight of Pedro and Alex is a multiple of 5.

Will the elevator bear the weight of the 4?


Pedro weighs 100, Alex 75, David 86 and Daniel 92; therefore the lift will hold the total 353kg.


  1. Caradawc

    Sorry for interfering ... I understand this issue. Let's discuss.

  2. Adolph

    Granted, a very useful thing

  3. Selvyn

    at you the inquisitive mind :)

  4. Huntingtun

    Not a word more!

  5. Cyr

    Could there be errors?

  6. Kajar

    I apologize for interrupting you, but I propose to go the other way.

  7. Arashirisar

    I think you are wrong. I'm sure. I can defend my position. Email me at PM.

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