The Fake Coin
You are given 9 coins which look identical,
but one is lighter than the rest.
Using the balance scale under,
What is the minimum number of weighings you need
to guarantee that you can find the counterfeit coin ?
The Fake Coin
You are given 9 coins which look identical,
but one is lighter than the rest.
Using the balance scale under,
What is the minimum number of weighings you need
to guarantee that you can find the counterfeit coin ?