Here's a challenge about the position of  the hands on a clock.

Between twelve o'clock midnight (12:00 a.m.) and twelve o'clock noon (12:00 p.m.), how many times are the minute hand and the hour hand of a clock at right angles to each other?

You may need to create an organized list to help you solve this problem.

To refresh your memory about right angles, look it up in the Glossary!

Your Name: Include your email address if you would like a response to your work: How many times will the minute hand and the hour hand be at right angles to each other? Explain the thinking you used to solve this problem.
Here's who has answered so far: Andy L.       Jason Paige D.       Justin C. Elias               Lexus B.

Are you ready for a greater time challenge? Try the Metric Time problem, if you dare...