1 . If it takes 4 hours to dig a hole by 50 workers, how long should it take to dig the same hole by 30 workers?
- A. 2 hours 24 minutes
- B. 6 houres 12 minutes
- C. 5 houres 12 minutes
- D. 6 hours 40 minutes
View Answer
|
Discuss in Forum
|
Workspace
|
Report
|