Recent content by jvwert

Form 3 main groups, each containing 1 and 3 coin sub-groups. Place one main group on each pan of a two pan balance - the third main group on the table. Observe the condition of the balance. This is the first weighing. Rotate the 3 coin sub-groups (from pan A to the table, pan B to pan A, and...

You have 120 coins, all of which are visually identical. E Except for one coin, they all weigh exactly the same. It is unknown whether the odd weight coin is lighter or heavier then the others. Using a two pan balance just five times, identify the odd weight coin.