maths

Mandy can get 100kg of corn cob for $160 from Matt,on condition that she buys at least 100kg.From another supplier,she can buy 100kg or less for $1/cob,or more than 100kg for $0.60/cob.she gets $5/kg of con cobs or $1.25 for an individual con cob.if she sell over 100kg today.what is the best profit per cob she can make? The answer is $0.85,but I cannot work out,can someone please explain,thanks

asked by wa
  1. Hmmm. you are mixing up price per kg and per cob, with no indication of how many cobs per kg.

    posted by Steve

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