Final answer:
To find the least number of students that would ride each bus, divide the total number of students by the number of buses. Round up to the nearest whole number.
Step-by-step explanation:
To find the least number of students that would ride each bus, we need to divide the total number of students by the number of buses. The van is not considered in this calculation because it already has a fixed capacity of 6 passengers. So the least number of students that would ride each bus is:
Number of students / Number of buses = Least number of students per bus
Given that there are 150 students, and there are 4 buses, we can calculate:
150 / 4 = 37.5
Since we cannot have a fraction of a student, we round up to the nearest whole number. Therefore, the least number of students that would ride each bus is 37.