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Thinking question. Good prize
There are 9 identical balls, look the same but one of these 9 balls is slightly heavier than the rest . How can you figure out which ball heavier, por using this weighing scale only twice?
Explain your answer to win 18 props!
Only 1st correct explanation gets the props!
Explain your answer to win 18 props!
Only 1st correct explanation gets the props!
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