6 workers should finish a job in 8 days. After 3 days came 4 workers join them. How many days do they need to finish the same job?
A. 3
B. 4
C. 5
D. 6
E. 7
I do not have the OA. sorry for the inconvenience....![]()
A. 3
B. 4
C. 5
D. 6
E. 7
I do not have the OA. sorry for the inconvenience....