A math student scored 75, 70, 85, 90, 100 on the first five tests he took . After he took his sixth math test, the average is now 85. What did he score on the sixth test?

Question

asked Jun 21, 2019 125k views

1 Answer

Mattz · Answer 1 · 2019-06-26T01:29:43+0000

To figure this out, you have to find the mean of the data set and solve for x.

(75 + 70 + 85 + 90 + 100 + x) / 6 = 85

The answer would be 90