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Two pipes X and Y can fill a tank in 24 mins and 32 mins each. If both the pipes are started at the same time, after what time should Y be closed to fill up the tank in 18 mins? |
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Answer» Two pipes X and Y can fill a tank in 24 mins and 32 mins each. If both the pipes are started at the same time, after what time should Y be closed to fill up the tank in 18 mins? |
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