SOLUTION: five pipes can fill 10 small tanks in 80 minutes or 6 large tanks in 90 minutes what is the least amount of time it will take for 10 pipes to fill 8 small tanks and 10 large tanks

Algebra ->  Rate-of-work-word-problems -> SOLUTION: five pipes can fill 10 small tanks in 80 minutes or 6 large tanks in 90 minutes what is the least amount of time it will take for 10 pipes to fill 8 small tanks and 10 large tanks       Log On


   



Question 325260: five pipes can fill 10 small tanks in 80 minutes or 6 large tanks in 90 minutes what is the least amount of time it will take for 10 pipes to fill 8 small tanks and 10 large tanks ?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
five pipes can fill 10 small tanks in 80 minutes
five pipes take 8 minutes to fill one small tank
ten pipes would take 4 minutes to fill one small tank
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five pipes can fill 6 large tanks in 90 minutes
five pipes take 15 minutes to fill one large tank
ten pipes would take 7.5 minutes to fill one large tank
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what is the least amount of time it will take
for 10 pipes to fill 8 small tanks would take 8*4 minutes = 32 minutes
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for 10 pipes to fill 10 large tanks = 10*7.5 = 75 minutes
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Total time = 32+75 = 107 minutes
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Cheers,
Stan H.