A and B working separately can do a piece of work in 9 and 12 days respectively.

Question

A and B working separately can do a piece of work in 9 and 12 days respectively. If they work for a day alternately. If A begins first, in how many days the work will be completed ?

Options:

A . 42/4 days

B . 41/4 days

C . 55 days

D . None of these

Answer: Option B
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