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Q:

A, B and C complete a work in 10, 12 and 15 days respectively. They started the work together. But A left the work before 5 days of its completion. B also left the work 2 days after A left. In how many days will the work completed? 

  • 1
    5 days
  • 2
    9 days
  • 3
    7 days
  • 4
    12 days
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Answer : 3. "7 days "

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