Rina can complete a piece of work in 6 days while Seema can do the same work in 9 days. If they both work together, then how many days will be required to finish the work?

Rina can complete a piece of work in 6 days while Seema can do the sam

1.	Rina can complete a piece of work in 6 days while Seema can do the same work in 9 days. If they both work together, then how many days will be required to finish the work?
A.	4 days
B.	10 days
C.	7.3 days
D.	3.6 days
Answer» E.