Civil Service Exam Reviewer · Ratio and Proportion · hard
8 workers can complete a job in 27 days. After working for 12 days, 5 workers leave. How many more days will the remaining workers need to finish the job?
- 15 days
- 60 days
- 40 days
- 52 days
Answer
C. 40 days
Solution
Total = 216 worker-days. Done in 12 days: 96. Remaining: 120. With 3 workers: 120 ÷ 3 = 40 days.
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