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Q:

A, B and three men can finish a work in 10, 20 and 15 days respectively, then in how many days will all three together finish the work?

  • 1
    7/28
  • 2
    60/16
  • 3
    13/60
  • 4
    19/60
  • Show Answer
  • Workspace

Answer : 3. "13/60"

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