document.write( "Question 414253: It takes Sally 15 minutes to pick apples from the tree in the backyard. Lisa can do it in 25 minutes. How long will it take them working together? \n" ); document.write( "
Algebra.Com's Answer #290539 by mananth(16946)\"\" \"About 
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sally 15 minutes
\n" ); document.write( "Lisa 25 minutes
\n" ); document.write( "..
\n" ); document.write( "Sally does 1/5 of job in 1 minute
\n" ); document.write( "Lisa does 1/25 of the job in 1 minute
\n" ); document.write( "..
\n" ); document.write( "Together they do 1/15 +1/25 of the job in 1 minute
\n" ); document.write( "LCD = 75
\n" ); document.write( "(5+3)75 of the job in 1 minute
\n" ); document.write( "8/75 of the job in 1 minute
\n" ); document.write( "so together they take 75 /8 minutes
\n" ); document.write( "9 3/8 minutes
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