Q. We have 9 identical metal balls but 1 ball is heavy (higher density). Using only weighing balance, what is the minimum no. of times you can use it to separate the heavy ball.
(Give the general answer not just the situation where you luckily pick up two balls and one of them is heavy.)
(Give the general answer not just the situation where you luckily pick up two balls and one of them is heavy.)
Answer is 3
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