4th grade math
posted by Rusty on .
Students are standing in a circle evenly spaced and numbered in order. The 3rd student is directtly opposite the 7th. How many students are in the circle?

Hint: Look at an analog clock.
http://pactlabdev.spcomm.uiuc.edu/classes/08SP/280blogs/first_weblog47/analog%20clock.jpg