Edx/BUx Introduction to Differential Equations Starts 5/16

[Ideas]

Is 50% a passing grade for these? In their schedule, at the bottom, it says "The course officially ends at this time. The content will still be available after the course closes, but those seeking a Verified Certificate must achieve an overall grade of 50% by this date."

Granted, 50% could be a bit challenging since the material is hard from the start, but I would much rather have a 50% cut-off than 60% or more.