Question

Joshua's test scores are 95, 90, and 83. What must he score on his next test to have an average test score of 90 on the four tests?

A) 95
B) 90
C) 83
D) 92

Answer 1

D) 92

Explanation:

First you would add 95, 90, and 83. Then add any of the answers and divide by 4. Which would give you an average of 90.

Answer 2

92

Explanation:

95+90+83=268

268/3=89.33

268+92=360

360/4=90