SOLUTION: 5 pipes together can fill a 30 L water tank in 30 minutes. How many pipes are required to fill a 40 L water tank in 20 minutes?
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Question 947192: 5 pipes together can fill a 30 L water tank in 30 minutes. How many pipes are required to fill a 40 L water tank in 20 minutes?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
5 pipes can fill a 30 liter tank in 30 min
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20 pipes can fill a 120 liter tank in 30 min
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60 pipes can fill a 120 liter tank in 10 min
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20 pipes can fill a 40 liter tank in 10 min
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10 pipes can fill a 40 liter tank in 20 min
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I just use common sense logic for each step
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