Raj, Rahul and Rohan can do a piece of work in 16 days, 24 days and 36 days respectively. They start working together. After working for 6 days Raj goes away and Rahul leaves 10 days before the work is finished only Rohan remains at work from beginning to end. Find the number of days in which the work was completed.
1
14 days
2
15 days
3
12 days
4
11 days
5
17 days