Student's Final Grade

Create a function finalGrade, which calculates the final grade of a student depending on two parameters: a grade for the exam and a number of completed projects. This function should take two arguments: exam - grade for exam (from 0 to 100); projects - number of completed projects (from 0 and above); This function should return a number (final grade). There are four types of final grades:

100, if a grade for the exam is more than 90 or if a number of completed projects more than 10.
90, if a grade for the exam is more than 75 and if a number of completed projects is minimum 5.
75, if a grade for the exam is more than 50 and if a number of completed projects is minimum 2.
0, in other cases

My code:

def final_grade(exam, projects):
    if exam > 90 or projects > 10:
        return 100
    elif exam > 75 and projects >= 5:
        return 90
    elif exam > 50 and projects >= 2:
        return 75
    else:
        return 0

And that's the best solution among all users:

def final_grade(exam, projects):
  if exam > 90 or  projects > 10: return 100
  if exam > 75 and projects >= 5: return 90
  if exam > 50 and projects >= 2: return 75
  return 0