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Rafiq can tile a courtyard in 44 days and Dinesh can tile it in 66 days. If they work as a team, how many days will the courtyard take?

Competition practiceTime & Work / Pipes
  • A26.4
  • B55
  • C22
  • D24.6

Step-by-Step Solution

Combined rate = 1/44 + 1/66 = (3 + 2)/132 = 5/132 per day, so time = 132/5 = 26.4 days. (55 is just the average of 44 and 66.)
Answer: A) 26.4

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