Kevin will take 4 math tests this term. All of the tests are worth the same number of points. After taking the first 3 tests, his mean test score is 88 points. How many points does he need on his last test to raise his mean test score to 90 points?
Assuming all his scores were the same the first three tests, Kevin will have to score at least a 96 out of a hundred points, if the tests are worth 100 points.