60 minutes for 50 questions is doable. I’ve had several exams like that throughout college and on my teacher certification tests. For example, when I took the CSET Single Subject Subtest III: Calculus and History of Math, I finished with 72 minutes to spare and I was only given 2 hours. Also, when I took the math Praxis 5161 I finished with quite a bit of time to spare, also. Yes, some math problems take longer than others, but a plurality or simple majority require very few steps, a single step, or just mental math.