"Fun with Math" puzzles are about house painting

These "Fun with Math" puzzles involve three painters who work at different speeds. You're supposed to figure out how many days it takes this crew to paint different numbers of houses.

"Fun with Math" author George Yu likes to check on your ability to figure how to mix differing abilities together to get a single answer.

You have to figure out how long to schedule the crew to get the painting jobs done.

You won't have to figure if the painters should be paid at varying rates. We'll leave that up to the boss of the painting company.

(To review the March contest and learn the winners and the answers, click here.)

The monthly "Fun with Math" contests follow the same rules YSL.com has followed for several years. They are:

1. Print out the following entry form.
2. Fill out your name, address and telephone number. (Print clearly please)
3. Include the name of your school and math teacher.
4. Answer the puzzle questions for April.
5. Put your completed entry into a stamped, addressed envelope.
6. Be sure to print the entry form so we can be sure of spelling.
7. Mail the entry to: