A class of 195 students on a field trip.They took 7 vehicles some cars and some buses.Find the number of cars and number of buses they took if each car holds 5 students and each bus holds 45 students.

Answer 1

C+B = 7

5C + 45B = 195

5C + 45 ( 7-C) = 195

5c + 315 - 45c = 195

-40c = -120

c = 3

b=4

3 cars and 4 buses