Question

On a biology quiz, 7 students got an 80%, 10 students got a 90% and 3 got a 100%. What was the class average?

(a) 80%
(b) 88%
(c) 90%
(d) 92%
(e) 100%

Answer 1

88%

Explanation:

Take the sum of all the scores, 7(80)+10(90)+3(100)= 1760

Divide 1760/ total number of test scores (20)

1760/20 = 88