pipes a and b can fill tank in 18 and 30 mintues. pipe c can drain 120 liters of water per minute. if all three opened together the tank two -third is filled in 30 mintues find tank capacity
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pipes a and b can fill tank in 18 and 30 mintues. pipe c can drain 120 liters of water per minute. if all three opened together the tank two -third is filled
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