What is the lowest mark i could get?

Question

im getting a 65 % in geography

and our exams start next week

if i fail the exam, what is the lowest percent i could get for my average?

the exam is worth 20% of the average

Answer 1

Well since the 65 is worth 80%, if you get a 0 on your exam then ...

65*80/100 = 52%

So ...

If you get 0% on your exam, you would get 52% in the course

If you get 50% on your exam, you would get 62% in the course

If you get 100% on your exam, you could get 72% in the course