A,B and C can do a piece of work in 12,18 and 9 days respectively. A started the work and worked for 4 days. Then B alone worked for 2 days. How many days would C alone take to complete the remaining work?

A,B and C can do a piece of work in 15,12 and 20 days respectively.They started the work together,but C left after 2 days.In how many days will the remaining work be completed by A and B?

A, b and C can alone complete a work in 10, 12 and 15 days respectively. A and C started the work and after working for 4 days, A left and B joined. In how many days the total work was completed ?

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 ?

A can complete of a work in 8 days. B can complete 3/5 of the same work in 12 days and C can complete 4/9 of the same work in 8 days. A and B worked together for 5 days. How much time(in days) will C alone take to complete the remaining work?

A and B can do a piece of work in 20 days and 12 days respectively. A started the work alone and then after 4 days B joined him till the completion of the work. How long did the work last?

A and B can do a job in 16 days and 12 days respectively. B has started the work alone 4 days before finishing the job, A joins B. How many days has B worked alone?