Carpenter A takes 15 minutes to fit the parts of a chair while carpenter B takes 3 more minutes than A to do the same work. Working together, how long will it take them to fit the parts for 22 chairs?
Put the parts in order to form a sentence. When you think your answer is correct, click on "Check" to check your answer. If you get stuck, click on "Hint" to find out the next correct part.