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myininaya

  • 5 years ago

Annie can make 20 drinks in 10 minutes Becky can make 20 drinks in 15 minutes Cathy can make 20 drinks in 5 minutes. If they work together, in how much time can they make the 20 drinks?

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  1. myininaya
    • 5 years ago
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    go daniel!

  2. anonymous
    • 5 years ago
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    Annie = 2 drink/1 min Becky = 1.33 drink/min Cathy = 4 drink/min Total = 7.33 drink/min 20drinks/7.33drinks/min = 2.73 minutes

  3. anonymous
    • 5 years ago
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    Thanks myininaya :D

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