document.write( "Question 968957: Two pipes fill a storage tank in 9 hours. The larger pipe fills the tank three times as fast as the smaller one. How long would it take the larger pipe to fill the tank alone? \n" ); document.write( "
Algebra.Com's Answer #592036 by dkppathak(439)\"\" \"About 
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Two pipes fill a storage tank in 9 hours. The larger pipe fills the tank three times as fast as the smaller one. How long would it take the larger pipe to fill the tank alone?
\n" ); document.write( "let smaller pipe take 3x hrs to fill the tank and big take x hours
\n" ); document.write( "big one hours =1/x and other 1 hours =1/3x
\n" ); document.write( "both pipe together in 1 hours = 1/x+1/3x=4/3x hours
\n" ); document.write( "as per given conditions both pipe fill up tank in 1 hours =1/9
\n" ); document.write( "4/3x=1/9 by cross multiplication
\n" ); document.write( "36=3x
\n" ); document.write( "X=12 hours
\n" ); document.write( "answer 12 hours
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