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Q:

A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do the work in

  • 1
    15 days
  • 2
    20 days
  • 3
    25 days
  • 4
    30 days
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Answer : 3. "25 days "

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