40 people do something in 40 days Can. They started working together did. But 5 at an interval of every 10 days In how many days do people leave work Will it end?

A can do a work in 12 days and B can do it in 18 days. They started working together. But A leaves 3 days before the work gets over. For how many days did the two work together ?

A and B can do a piece of work together in 15 days while A alone can do it in 25 days. They start working together but B leaves 5 days before the completion of the work. For how many days did A and B work together?

Krishna can do a work in 10 days while Mohan can do the same work in 20 days. They started work together. After 3 days Krishna left the work and Mohan completed it. For how many days Mohan worked alone more than the number of days required when both worked together ?

P can do a piece of work in 20 days and Q can do the same piece of work in 60 days. They start working together and work for 5 days and then both leave the work. R alone finishes the remaining work in 10 days. In how many days will R alone finish the whole work?

A can do a piece of work in 20 days and B can do the same piece of work in 30 days. They start working together and work for 5 days and then both leave he work. C alone finishes the remaining work in 14 days. In how many days will C alone finish the whole work?