A, B and C can complete a piece of work in 10 days, 20 days and 25 days, respectively. If they tak 40 days to complete a piece of work, then in how many days can C alone complete the work ?

A, B and C can complete a piece of work in 10, 20 and 60 days respectively. Working together they can complete the same work in how many days?

Gauthan and Karthik can do a piece of work in 10 days and 20 days respectively. With the help of Nilesh, they can complete the whole work in 5 days. In how many days can Nilesh alone complete the work ?

Gauthan and Karthik can do a piece of work in 10 days and 20 days respectively. With the help of Nilesh, they can complete the whole work in 5 days. In how many days can Nilesh alone complete the work ?

A and B can complete a piece of work in 15 days and 10 days, respectively . They work together for 4 days and then B leavs. In how many days will A alone complete the remaining work ?