There were 50+50 = <<50+50=100>>100 cars that went through the toll booth on Monday and Tuesday.
On Wednesday, the number of cars that went through the toll booth is 2*50 = <<2*50=100>>100.
The exact number of cars passed through the toll booth on Thursday as Wednesday, giving a total of 100+100 = <<100+100=200>>200 vehicles going through the toll booth in the two days.
There were 200+100 = <<200+100=300>>300 cars that passed through the toll booth from Monday to Thursday.
If the total number of cars passed through the toll booth in the week was 450, then 450-300 = <<450-300=150>>150 vehicles went through the toll booth on the remaining days.
Since there were an equal number of cars in the toll booth on each of the remaining days, there were 150/3 = <<150/3=50>>50 cars on each day.
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