A school has sixth-grade students that are going on a field trip at the end of the school year. the students will be divided into five groups, each group riding on a different bus. there are a total number of 242 students going on the field trip. write and solve an equation to determine s, the number of students that will ride on both bus #4.
buses number of students
bus 1 62
bus 2 64
bus 3 55
bus 4 s