A can do a piece of work in 12 days and B in 20 days. If they together work on i

Question

A can do a piece of work in 12 days and B in 20 days. If they together work on it for 5 days, and remaining work is completed by C in 3 days, then in how many days can C do the same work alone ?

Options:

A . 10 days

B . 9 days

C . 12 days

D . 15 days

Answer: Option B

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