In this lesson on work problems, the concept of work is introduced through an example of painting a house. The relationship between rate, time, and work is explained using rate*time=work or job done. The lesson then moves on to a work problem involving two people, Tom and Don, who work at different rates to paint a house. The transcript walks through how to find the time it takes for them to complete the job working together.
How long does it take for two people to do the same job together?
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com