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Q:

A works twice as fast as B and B works twice as fast as C. All three working together can finish a task in 4 days with the help of D. If D alone can finish the same task in 16 days, then in how many days will A alone finish 75 % of the same task?

  • 1
    9
  • 2
    7
  • 3
    6
  • 4
    8
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Answer : 2. "7"

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