## How to Solve Work Problems Part 3

This is the third part of the **Solving Work Problems Series**. The first part of this series discussed in detail the **concept behind work problems** and the second part discussed the **basic work problems **and their solutions.

In this post, we discuss two more work problems. The first problem is about two persons who started to work together and after a while, the other person stopped. The second problem is about filling a pool whose outlet pipe is left open.

**Sample Problem 4**

Jack can dig a ditch alone in 5 days, while John alone can do it in 8 days. The two of them started working together, but after two days, Jack left the job. How many more days do John need to work to finish the job alone? » Read more