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Q:

A alone can complete a work in 15 days and B alone can complete a work in 25 days. If they work on alternate days starting with A, in how many days the work will be finished?

  • 1
    16 days
  • 2
    22 days
  • 3
    $$17{1\over 2} $$ days
  • 4
    $$18{3\over 5} $$ days
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Answer : 4. "$$18{3\over 5} $$ days"

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