Calculate my grade for chemistry

Question

My grade for 1st semester was a B 83.9% and now I’m in 2nd semester but I want to know how many questions can I miss in order to keep the B (81.7) that I have or raise up to a higher B or to an A. And in the exam there is about 80 questions.

Answer 1

Angelina,

There is not enough information to solve this problem.

I assume the average of both semesters will give you a final grade.

The 2nd semester exam(80 questions), how much is this exam worth(percentage)?