Kajal and Ajay can separately do a piece of work in 6 days and 12 days respectively. How long will they together take to do the work?
1
5 days
2
4 days
3
6 days
4
3 days
Kajal and Ajay can separately do a piece of work in 6 days and 12 days respectively. How long will they together take to do the work?