

MCQOPTIONS
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1. |
A and B can do a work in 4 hours and 12 hours respectively. A starts the work at 6 AM and they work alternately for one hour each. When will the work be completed? |
A. | 4 days |
B. | 5 days |
C. | 6 days |
D. | 7 days |
Answer» D. 7 days | |