4) The local amusement park 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 8 vans and 10 buses with 560 students. High School B rented and
filled 5 vans and 5 buses with 290 students. Every van had the same number of students in it as
did the buses. Find the number of students in each van and in each bus.