Civil Service Exam Reviewer · Word Problems · hard

Paolo can finish a job in 17 days and Ben in 8 days. They work together for 1 day(s), then Ben leaves. How many days in all does it take to finish the job?

  1. 5 11/25 days
  2. 14 7/8 days
  3. 13 7/8 days
  4. 12 1/2 days

Answer

B. 14 7/8 days

Solution

In 1 day(s) together they finish 25/136. Remaining 111/136 takes Paolo 13 7/8 days. Total = 1 + 13 7/8 = 14 7/8 days.

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