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Q. A, B and C can do a piece of work in 30, 20 and 10 days respectively. A is assisted by B on one day and by C on the next day, alternately. How long would the work take to finish ?

  • (A) 4 7/8 days
  • (B) 8 4/13 days
  • (C) 3 9/13 days
  • (D) 9 3/8 days
  • Correct Answer - Option(D)
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