A and B can together finish a work in 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the job ? `40` b. `50` c. `54` d. `60`

S and T can finish a work in 50 days. They worked together for 20 days and then left . How much of the work is left

A and B can together complete a task 40 days. They worked together for 30 days and then left. A finished the remaining task in next 22 days. In how many days A alone can finish the task?

A\ a n d\ B can do a piece of work in 20 days and 15 days. They work together for 2 days and then A goes away. In how many days will B finish the remaining work?

A can do a piece of work in 25 days and B in 20 days. They work together for 5 days and then A goes away. In how many days will B finish the remaining 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?