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Q:

A and B together can complete a particular task in 6 days. If A alone can complete the same task in 10 days, how many days will B take tocomplete the task if he works alone?

  • 1
    15
  • 2
    16
  • 3
    14
  • 4
    12
  • 5
    None of these
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Answer : 1. "15"

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