A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in :

A and B can complete a work in 15 days and 10 days respectively. They

1.	A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in :
A.	days
B.	0 days
C.	2 days
D.	5 days
Answer» D. 5 days