A and B can together do a piece of work it in 6 days and A alone can do it in 9 days. The number of days B will take to do it alone is ?

A and B can together do a piece of work it in 6 days and A alone can d

1.	A and B can together do a piece of work it in 6 days and A alone can do it in 9 days. The number of days B will take to do it alone is ?
A.	8 days
B.	4 days
C.	days
D.	2 days
Answer» B. 4 days