Answer: 8 adults
Explanation:
Number of students = 30
Adults accompanying the students are to drive:
Each car can accommodate 5 passengers including the driver. That is, 4 students and the driver.
In other to get the 30 students to Washington :
Number of cars / adults = (Total students / number of students each car can accommodate)
= 30 / 4
= 7. 50
= 8 (to the nearest whole number)
The smallest number of adults that should be invited for the trip will 8 since they will be the one's to drive the students.