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Q:

A , B, and C together can finish a task in 12 days. A is twice as productive as B and C alone can do the task in 36 days. In how many days can A and B do the task if C goes on leave? 

  • 1
    20
  • 2
    18
  • 3
    10
  • 4
    15
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Answer : 2. "18"

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