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Q:

A, B, and C alone can do a work in 40 days ,120 days and 36 days respectively. A and B work together for 20 days and leave it incomplete. C carries on the work and complete it alone.  How many days did C take to complete the work?

  • 1
    18
  • 2
    12
  • 3
    20
  • 4
    16
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Answer : 2. "12"

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