A is thrice as efficient as B and therefore he takes 30 days less to complete the work than B. If A and B work together, how many days will it take to complete the work?

A is thrice as efficient as B and therefore he takes 30 days less to c

1.	A is thrice as efficient as B and therefore he takes 30 days less to complete the work than B. If A and B work together, how many days will it take to complete the work?
A.	\(11 \frac{1}{4}\)
B.	\(11 \frac{3}{4}\)
C.	\(11 \frac{11}{4}\)
D.	11 days
Answer» B. \(11 \frac{3}{4}\)

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A is thrice as efficient as B and therefore he takes 30 days less to complete the work than B. If A and B work together, how many days will it take to complete the work?

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