A can do a certain job in 12 days. B is 60 % more efficient than A. Then Number of days it takes B to do the same piece of work is?
A. 6
B.
C.
D. 8
Answer:C
A can do a certain job in 12 days. B is 60 % more efficient than A. Then Number of days it takes B to do the same piece of work is?
A. 6 B. C. D. 8