The county fair is a popular field trip destination. This year the senior class at High School A and the senior class at High School B both planned trips there. The senior
class at High School A rented and filled 10 vans and 13 buses with 660 students. High
School B rented and filled 9 vans and 6 buses with 366 students. Every van had the
same number of students in it as did the buses. How many students can a van carry?
How many students can a bus carry?