How much time for a variety of trips

The "Fun with Math" questions for May involve people taking trips using various modes of transportation. Then there's a crazy bird tracking the travelers in one of the puzzles.

"Fun with Math" author George Yu wants you to find the relationships between the travelers' times and their type of transport. Also the times for the crazy bird.

The calculations need to be exact because in some cases the travelers want to meet up at different places.

In some ways, the relationships between speeds of travel are similar to the relationships between the painters in the April puzzles. (To review the April results, just 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 May.
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: