SOLUTION: 54. If two inlet pipes are both open, they can fill a pool in 1 hour and 12 minutes. One of the pipes can fill the pool by itself in 2 hours. How long would it take the other pipe
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-> SOLUTION: 54. If two inlet pipes are both open, they can fill a pool in 1 hour and 12 minutes. One of the pipes can fill the pool by itself in 2 hours. How long would it take the other pipe
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Question 56498This question is from textbook Algebra for College Students
: 54. If two inlet pipes are both open, they can fill a pool in 1 hour and 12 minutes. One of the pipes can fill the pool by itself in 2 hours. How long would it take the other pipe to fill the pool by itself? This question is from textbook Algebra for College Students
You can put this solution on YOUR website! If two inlet pipes are both open, they can fill a pool in 1 hour and 12 minutes. One of the pipes can fill the pool by itself in 2 hours. How long would it take the other pipe to fill the pool by itself?
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Pipes together DATA:
time to fill = 72 min/job ; rate = 1/72 job/min
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One pipe alone DATA:
time to fill = 120 min/job ; rate = 1/120 job/min
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2nd pipe alone DATA:
time to fill = x min/job ; rate = 1/x job/min
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EQUATION:
one pipe rate + other pipe rate = together rate
1/120 + 1/x = 1/72
(x+120)/120x = 1/72
120x= 72x+8640
48x=8640
x=180 minutes
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2nd pipe alone would take 180 min or 3 hours to fill the pool.
Cheers,
Stan H.
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