Civil Service Exam Reviewer · Word Problems · hard
Ella can finish a job in 13 days and Carlo in 18 days. They work together for 2 day(s), then Carlo leaves. How many days in all does it take to finish the job?
- 11 5/9 days
- 7 17/31 days
- 9 5/9 days
- 15 1/2 days
Answer
A. 11 5/9 days
Solution
In 2 day(s) together they finish 31/117. Remaining 86/117 takes Ella 9 5/9 days. Total = 2 + 9 5/9 = 11 5/9 days.
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