A can do a certain job in 12 days. B is 60% more efficient than A. To do the same job B alone would take :

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

1.	A can do a certain job in 12 days. B is 60% more efficient than A. To do the same job B alone would take :
A.	<table><tr><td rowspan="2">7</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2">days </td></tr><td align="center">2</td></table>
B.	8 days
C.	10 days
D.	7 days
Answer» B. 8 days

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A can do a certain job in 12 days. B is 60% more efficient than A. To do the same job B alone would take :

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