toget 80% you need .8 x 15 = 12 questions right. That means you can 15-12 = 3 questions wrong
10 - 3 = 7 7 / 10 = .7 = 70%
With 3 wrongs out of 8 questions your average is (3/8)x100 = 37.5% wrong and 62.5 correct.
92 :)
50
80% B
65
As a percentage it is 80%
toget 80% you need .8 x 15 = 12 questions right. That means you can 15-12 = 3 questions wrong
85% or a B, perhaps a B+
It depends on the grading scale. 47/50 is 94% which is an A in most cases.
5/15 *100 = 331/3 % (this is the percentage wrong) 10/15 *100 = 662/3 % (the percentage right)
10 - 3 = 7 7 / 10 = .7 = 70%
15. They allow you to get 3 wrong answers in order to pass.
That is about a "C".
With 3 wrongs out of 8 questions your average is (3/8)x100 = 37.5% wrong and 62.5 correct.
77% or C+