24 student's complete test and the mean mark is 33.?

Answers

Answer #1 | 23/12 2013 06:44

So, the total score of the students (before the other student) is 24 * 33 = 792 points
Then, after the 25th student, the score is 25 * 32 = 800 points
The difference is 8 points, so the late student's mark was 8.

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Answer #1| 23/12 2013 06:4461 %