SOLUTION: 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 t
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Question 38193: 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 the 20 drinks?
Answer by Paul(988) (Show Source): You can put this solution on YOUR website!
x/5+x/10+x/15
6x/30+3x/30+2x/30
11x=30
x=30/11
Hence, it will take them 30/11 minutes to mix the drinks together.
Paul.
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