Is 20 out of 30 an f?

It depends on the grading scale used. In the United States, a grade of 20 out of 30 is typically considered an F, which is the lowest possible grade. In other countries, however, the grading scale may be different and a score of 20 out of 30 may not necessarily be an F. For example, in some countries, a grade of 20 out of 30 may be considered a C or a D, depending on the grading scale used.