

MCQOPTIONS
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1. |
A, B and C can do apiece of work in 11 days, 20 days and 55 days respectively, working alone. How soon can the work be done if A is assisted by B and C on alternate days? |
A. | 1 |
B. | 8 |
C. | 9 |
D. | 10 |
Answer» C. 9 | |