document.write( "Question 353948: If Steven can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10 minutes, and Jack can mix 20 drinks in 15 minutes, how much time will it take all 3 of them working together to mix 20 drinks? \n" ); document.write( "
Algebra.Com's Answer #253014 by checkley77(12844)\"\" \"About 
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1/5+1/10+1/15=1/x
\n" ); document.write( "(6+3+2)/30=1/x
\n" ); document.write( "11/30=1/x
\n" ); document.write( "11x=30
\n" ); document.write( "x=30/11
\n" ); document.write( "x=2.73 min. for the three to mix 20 drinks working together.
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