# SOLUTION: Pipe A can fill in 20 minutes and Pipe B in 30 minutes and Pipe C can empty the same in 40 minutes. If all of them work together, find the time taken to fill the tank

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 Click here to see ALL problems on Geometry Word Problems Question 636514: Pipe A can fill in 20 minutes and Pipe B in 30 minutes and Pipe C can empty the same in 40 minutes. If all of them work together, find the time taken to fill the tankAnswer by jerryguo41(162)   (Show Source): You can put this solution on YOUR website!1. find the rate in which the cans can be filled by each pipe 2. write the equation Rate of pipe A + Rate of pipe B + Rate of Pipe C = 1 Full Can Rate of pipe A: 1/20 per min Rate of pipe B: 1/30 per min Rate of pipe C: 1/40 per min x= number of min 3. Clear Fractions (*40) 4. It will take 9 mins and 14 sec. to fill the empty can with all three pipes.