Answer: 9 students were in each bus.
Step-by-step explanation:
Let x represent the number of students that rode in each bus.
For a field trip 18 students rode in care and the rest filled 5 buses. This means that the number of students that rode in the 5 buses is 5x. Therefore, the total number of student that went on the field trip is
5x + 18
if no more than 250 students went on the trip, it means that
5x + 18 ≤ 250
5x ≤ 250 - 18
5x ≤ 232
x ≤ 232/5
x ≤ 46.4
Therefore, the number of students in each bus would be
46.4/5 = 9.28
Since the number of students cannot be a fraction and the buses were filled, then 9 students were in each bus.
