The number of students in each bus is 21
Given data
Total number of students on the trip = 172
25 students traveled in cars
7 buses were filled
let the number students on each bus be x
number of students on the bus is gotten by
172 - 25 = 147
so 147 students travelled by bus and the total number of buses is 7.
to get the number of students in each bus we solve as follows
147 / 7 = 21
Hence each bus contains 21 students.
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