Question

Larson has a score of 89 for each of his first three science

quizzes. The score on his fourth quiz is a 92. What score
does he need on the fifth quiz to have an average of exactly
90?

Answer 1

91%

Explanation:

(89+89+89+92)/4 = 89.75%

To get exactly 90, he would need a 91% because a number between 89-92 is 91. Also, you can just guess and check on the calculator!

Answer 2

Answer 91

Explanation: