18/25= 0.72 so, it would be a C.
60% or D-
As a percentage 18 out of 20 is 90%
An 18/25 would be a 72 C, if you go by the 10 point scale. Just divide 18 by 25, and that's your percentage.
15/18 is 83%, which is typically a B-minus on a letter-grade scale.
25 out of 45 = 56% = Failing grade
Get a calculator or a third grade education in arithmetic.
um... a 100%?
Whole letter grade is C. Full letter grade is C-.
If Your test grade avearge is 57 and your assignment grade is 75 and the test grade counts for 75% and asignment 25%, then your grade is .75 (57) + .25(75) = 61.5
It is 12%, which is a fail grade.
25 + 18 = 43
The letter grade for an 85 is a B.