Mathematical puzzles

Puzzles, situation puzzles and recreational mathematics.

situation puzzles and recreational mathematics. Neuron juice
 
 
 

Neuron juice.

The important thing is not to stop questioning. (Albert Einstein.)

  

Riddle.


6. A prisoner is locked in a cell with two doors, one leading to death and the other to freedom . Each door is guarded by a guard , the prisoner knows that one of them always tells the truth and the other always lies. To choose the door that can only happen ask a question to one of the guards
How can you save ?

 

 


 

Solution


The question might be : What if I asked the other guard which door you have to go answer me ? ".
In the event that we are talking with would tell you that always lies " The other guard would tell you that the door through which you leave it ... ( the back door ) ."
In the event that you ask the other would say something like " The other guard would tell you that the door through which you leave it ... ( the back door )
In this way you only have to ask either and choose the opposite door to indicate they will .