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In a pond, a lotus flower grows and doubles its size per day, on the 10th day, the lotus flower has grown to the same size as the pond. On which day was the lotus half the size of the pond?
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It would be the 9th day. The lotus would be half the size of the pond on the 9th day, and when it doubles the next day, it will become the full size of the pond. :)
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Wednesday
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