I Believe that 85% would be a B or a B-
51 / 60 On A Math Test - 85% - What Letter Grade Is This? An A?
90-100= A
80-89= B
70-79=c
lower= F
80-89= B
70-79=c
lower= F
The letter grade depends on the grading scheme used by your teacher or school. In some cases, it may vary from one test to another. In my school, 90% or better is required for an "A" when grading is not "on the curve."