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You are given 9 golf balls.
One ball is lighter than the rest but they all look the same.
Their weight can't be determend by a human feel test.
There is only one way and one answer that is the best.
You are given a scale, a balancing type scale, not the kind we use making ale.
You may use the scale twice to find out which ball is the light one.
If this were easy you could use it thrice.
Proceed...
Please let others try before you reply.
You are given 9 golf balls.
One ball is lighter than the rest but they all look the same.
Their weight can't be determend by a human feel test.
There is only one way and one answer that is the best.
You are given a scale, a balancing type scale, not the kind we use making ale.
You may use the scale twice to find out which ball is the light one.
If this were easy you could use it thrice.
Proceed...