document.write( "Question 421865: one pipe can fill the pool in 6 hours.another pipe can fill the pool in 8 hours .if both pipes are open,how long will it take the pool to be filled? \n" ); document.write( "
Algebra.Com's Answer #294501 by mananth(16946)\"\" \"About 
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Filling the tank is one job
\n" ); document.write( "One pipe fills in 6 hours
\n" ); document.write( "It does 1/ 6 of the job in 1 hours
\n" ); document.write( "other pipe 8 hours
\n" ); document.write( "It does 1/ 8 of thejob in 1 hours
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\n" ); document.write( "Together they will do 1/6+ 1/8 of the job in 1 hour
\n" ); document.write( "Together they will do 7/24 of the job in one hour
\n" ); document.write( "So they will take 24/7 hours
\n" ); document.write( "OR 3.43 hours
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