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Q:

A is 40% more efficient than B. How much time will both, working together, take to finish the work, which B alone can finish in 36 days?

  • 1
    $$9{1\over 3}$$ days
  • 2
    15 days
  • 3
    $$11{2\over 3}$$ days
  • 4
    18 days
  • Show Answer
  • Workspace

Answer : 2. "15 days"

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