Question

Jackie’s test scores for the first semester are listed below.

97 86 83 95 88 x?


What is the lowest score he could get on his 6th test to get an overall average of 90?

Answer 1

The answer is 91

Explanation:

90 x 6 = 540

The numbers need to equal 540 all together to make an average of 90.

97 + 86 + 83 + 95 + 88 = 449

540 - 449 = 91

To check:

97 + 86 + 83 + 95 + 88 + 91 = 540

Therefore, the answer is 91