P can complete a work in 15 days and Q in 24 days. They began the work together but Q left the work 2 days before its completion. In how many days was the work completed?
1
12
2
10
3
9
4
11
P can complete a work in 15 days and Q in 24 days. They began the work together but Q left the work 2 days before its completion. In how many days was the work completed?