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9 balls of same color and size One out of them is of different weight Given a weighing balance how you will identify the odd-one in fewest attempts?
Wiki User
∙ 14y ago
Weigh 3 balls at a time. The set of 3 that weighs more will have the heavy ball in it. Now weigh each of those 3 balls one at a time. This method uses the scale 4 or less times, depending on how soon you are able to find the heavy ball.
We cannot assume the ball is heavier.
Wiki User
∙ 14y ago
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