A can do a certain job in 12 days and B is 60%more efficient than A. The B can do the same piece of work in ?

${\text{6}}\frac{1}{4}{\text{ days}}$$

${\text{7}}\frac{1}{2}{\text{ days}}$$

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

1.	A can do a certain job in 12 days and B is 60%more efficient than A. The B can do the same piece of work in ?
A.	${\text{8 days}}$$
B.	${\text{7}}\frac{1}{2}{\text{ days}}$$
C.	${\text{6}}\frac{1}{4}{\text{ days}}$$
D.	${\text{6 days}}$$
Answer» C. ${\text{6}}\frac{1}{4}{\text{ days}}$$