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A works 6 hours a day and finishes a job in 16 days; B works 8 hours a day and finishes it in 10 days. Working together 8 hours a day, how long do they take?

Competition practiceTime & Work / Pipes
  • A6 days
  • B5 days
  • C4 8/11 days
  • D5 5/11 days

Step-by-Step Solution

A needs 96 hours, B 80 hours. Per hour hours days.
Answer: D) 5 5/11 days

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