A, B and C can do a piece of work in 11 days, 20 days and 55 days respectively. If B works daily and is supported by A and C on alternate days beginning with A, then in how many days will the work be finished?
A. 10
B. $$9\frac{1}{3}$$
C. 12
D. 8
Answer: Option B
This Question Belongs to Arithmetic Ability >> Time And Work
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