Mathematics
A and B together can do a piece of work in 6 days. Whereas A alone can do the same work in 9 days. Then B alone will do same work in:
15 days
6 days
18 days
54 days
A and B together can do a piece of work in 6 days. Whereas A alone can do the same work in 9 days. Then B alone will do same work in:
15 days
6 days
18 days
54 days