It depends on prior knowledge, your English skills and how brright you are.
In lecturing time it takes about 5 days per subject = 5 x 7 = 35 hours of lecture. Self study is also needed, say 5 x 3 hours + 2 weekend days = about 30 hours.
Therefore, a rough estimate is 60 – 70 hours of study/paper, and that’s with lectures. Self study would take longer, at least 80 hours.