SOLUTION: there are two boxes.one contains 100 dollars and the other contains one penny.there are also two computer.one always tells the truth about the boxes and the other one never tells t

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Question 315424: there are two boxes.one contains 100 dollars and the other contains one penny.there are also two computer.one always tells the truth about the boxes and the other one never tells the truth.you dont know which box contains 100 dollars ,nor which computer always tells the truth.you are allowed to ask one qustion of one computer.what qustion should you ask to be sure of selecting the box that contains 100 dollars
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
"Will the other computer tell me there is $100 in this box?"

if there is $100 in the box
___ the truthful computer will say "NO" because the other computer will lie
___ the lying computer will say "NO" because it lies about the truthful response

if there is a penny in the box
___ the truthful computer will say "YES" because the other computer will lie
___ the lying computer will say "YES" because it lies about the truthful response

a "NO" answer means there is $100 in the box
___ a "YES" answer means a penny