Three classes at a school have 18, 24, and 27 students. All three will be divided into project groups. Each group must have the same number of students, and all the students in a group must be in the same class. What is the largest group size possible?

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?