46. Susan completed 20 courses in college and her grade point average was 3.15(A = 4.0 and B = 3.0). If all of her grades were A's or B's, and each course grade carried equal weight, what is the number of A's that Susan received?

Answer and Explanation

Your Answer is

Correct Answer is G

Explanation

Assuming that the number of A's obtained is x, then we can know from the meaning of the question: 4x + 3(20-x) = 3.15 * 20; so x=3