A and B can do a job together in 7 days. A is 1 3/4 times as efficient as B. The same job can be done by A alone in :

A and B can do a job together in 7 days. A is 1 3/4 times as efficient

1.	A and B can do a job together in 7 days. A is 1 3/4 times as efficient as B. The same job can be done by A alone in :
A.	9 1/3 days
B.	11 days
C.	12 1/4 days
D.	16 1/3 days
Answer» C. 12 1/4 days

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A and B can do a job together in 7 days. A is 1 3/4 times as efficient as B. The same job can be done by A alone in :

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