document.write( "Question 316536: John makes 20 drinks in 5 minutes. Steve makes 20 drinks in 10 minutes and Sue makes 20 drinks in 15 minutes. How long will it take to make 20 drinks if they worked together? \n" ); document.write( "
Algebra.Com's Answer #226614 by checkley77(12844)\"\" \"About 
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1/5+1/10+1/15=1/X FIND THE LCD (30).
\n" ); document.write( "(6+3+2)/30=1/X
\n" ); document.write( "11/30=1/X CROSS MULTIPLY.
\n" ); document.write( "11X=30
\n" ); document.write( "X=30/11
\n" ); document.write( "X=2.727 MINUTES TO MIX 20 DRINKS WHEN ALL 3 WORK TOGETHER.
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