# SOLUTION: A bath tub can be filled by the hot and cold water pipes in 4 minutes, and when full it can be emptied by the waste pipe in 5 minutes. If it is half full, and all three pipes are

Algebra ->  Algebra  -> Rate-of-work-word-problems -> SOLUTION: A bath tub can be filled by the hot and cold water pipes in 4 minutes, and when full it can be emptied by the waste pipe in 5 minutes. If it is half full, and all three pipes are       Log On

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 Click here to see ALL problems on Rate-of-work-word-problems Question 505268: A bath tub can be filled by the hot and cold water pipes in 4 minutes, and when full it can be emptied by the waste pipe in 5 minutes. If it is half full, and all three pipes are set running, when will the tub be filled?Answer by nerdybill(6962)   (Show Source): You can put this solution on YOUR website!A bath tub can be filled by the hot and cold water pipes in 4 minutes, and when full it can be emptied by the waste pipe in 5 minutes. If it is half full, and all three pipes are set running, when will the tub be filled? . Let t = time (mins) tub is filled then t(1/4 - 1/5)= 1/2 multiplying both sides by 20: t(5 - 4)= 10 t(1)= 10 t = 10 minutes