Civil Service Exam Reviewer · Ratio and Proportion · hard
8 workers can complete a job in 27 days. After working for 22 days, 6 workers leave. How many more days will the remaining workers need to finish the job?
- 5 days
- 86 days
- 42 days
- 20 days
Answer
D. 20 days
Solution
Total = 216 worker-days. Done in 22 days: 176. Remaining: 40. With 2 workers: 40 ÷ 2 = 20 days.
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