A can do a certain job in 12 days. B is 60% more efficient than A. How many days does B alone take to do the same job?

\[11\,\,{\scriptstyle{}^{1}/{}_{2}}\] days

\[9\,\,{\scriptstyle{}^{1}/{}_{2}}\]days

\[8\,\,{\scriptstyle{}^{1}/{}_{2}}\] days

\[7\,\,{\scriptstyle{}^{1}/{}_{2}}\] days

A can do a certain job in 12 days. B is 60% more efficient than A. How

1.	A can do a certain job in 12 days. B is 60% more efficient than A. How many days does B alone take to do the same job?
A.	\[9\,\,{\scriptstyle{}^{1}/{}_{2}}\]days
B.	\[8\,\,{\scriptstyle{}^{1}/{}_{2}}\] days
C.	\[7\,\,{\scriptstyle{}^{1}/{}_{2}}\] days
D.	\[11\,\,{\scriptstyle{}^{1}/{}_{2}}\] days
Answer» D. \[11\,\,{\scriptstyle{}^{1}/{}_{2}}\] days

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A can do a certain job in 12 days. B is 60% more efficient than A. How many days does B alone take to do the same job?

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