A and B together completes a task in 10 days, B and C together completes in 15 days and A and C together completes in 18 days. In how many days, A, B and C together finish the task?
1
6 days
2
7 days
3
8 days
4
9 days
5
10 days
A and B together completes a task in 10 days, B and C together completes in 15 days and A and C together completes in 18 days. In how many days, A, B and C together finish the task?