Work Problem 1 - Intro

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?

• How do you solve word problems about the amount it time it takes to do a certain amount of work?
• If Tom takes 12 hours to paint a house, what is his rate per hour?
• If Tom takes 12 hours to paint a house, and he only works for 6 hours, how much work will he get done?
• If it takes Mary 2/3 of an hour to clean a room, what is her rate per hour?
• If Tom takes 12 hours to paint a house alone, and Don takes 6 hours to paint the house alone, how long would it take if they work together?
• How do you write an solve an equation about two people doing the same job together?
• How can you solve x/12 + x/6 = 1?
• How can you check your solution to a word work problem?
• How can you estimate how long it will take to complete a task before solving?