You got the following scores on 3 tests: 84, 82, 98. What score must you get on the 4th test if you want to average a 90% for the 4 tests?

A. 94
B. 95
C. 96
D. 97
E. 98

Your answer is c. 96 I know this because if you go on the calculator and add up 84+82+98+96 its equals to 360 and 360 divided by four (since there are now four marks including the mark you need to get on the next test) and that equals to 90.
(in other terms) 84+82+98+96=360 360÷4=90 therefore, you need to get a score of 96 on your fourth test to receive an average of 90%

Answered by Greenbubblelove | 2024-06-10

To average 90% across four tests, you need to score 96 on the 4th test. This is calculated by ensuring the total score across all tests equals 360. The scores from the first three tests add up to 264, needing an additional 96 to reach the goal.
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Answered by Greenbubblelove | 2024-12-23