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If you have eight golf balls seven of which weigh exactly the same The eighth golf balls weighs slightly less than the others with only two opportunities to use a balance scale determine which ball?
Wiki User
∙ 14y ago
Weight 3 balls on each side.
If they weight the same, the light one is one of the two left that were not weighed. Then weight those two to find the lighter one.
If one of the sets of 3 is less than the other, weight any two of the three. If they are the same, the one not weighed is the light one, otherwise, the lighter one will show in the weighing.
Wiki User
∙ 14y ago
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