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. 8.- This riddle is mainly the same as the previous one about the twelve coins, but now we don't know if the different coin is heavier or lighter than the others, and we have just three tries.

The question is which is the different coin and wheter it is heavier or lighter.

 

SOLUTION