pls help me with this question bc it’s for a test

Answer:
50%
Step-by-step explanation:
The total students are 80 + 70 = 150
the total students that arrive in automobile are: 51 + 24 = 75
we have to use a proportion to answer the question:
x : 100 = 75 : 150
x = (75*100)/150 = 50