document.write( "Question 946009: Shawna can pour a large concrete driveway in 6 hours. Dan can pour the same driveway in 7 hours. Find how long it would take them if they worked together. \n" ); document.write( "

Algebra.Com's Answer #577085 by amarjeeth123(570) $\"\"$ $\"About$

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In 1 hour Shawna can do 1/6 of the work.
\n" ); document.write( "In 1 hour Dan can do 1/7 of the work.
\n" ); document.write( "In 1 hour both of them can do (1/6+1/7) i.e.(13/42) of the work.
\n" ); document.write( "If they worked together they will take 42/13 hours i.e.3.23 hours \n" ); document.write( "

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