Yup! Even my some schools have more higher minimum score than that. Like mine, during my middle school and highschool days, one of my subject has 80 and 82 as their standards, some of em are lower than that, probably like 70-75. And it was like maybe 8-9 years ago, i don't about these years tho... It's different from region to region and one school to another, sometimes it's also different from on subject to another.
In case it wasn't clear, Shuu's test score improved by 74 points being his last test is only 1 point. Tests in Japanese MS/HS are often 100 points per subject test so 75 points is a very good score.
75s a fail??? oh my days