KöMaL 2010 K242
The maximum score on a test is 100 points. The scores of the students are recorded in a computer. When a new score is entered, the program immediately calculates the average of the scores entered so far. While entering the scores of the first five students, the teacher observed that the average increased by 3 points with every score entered. By how many points did the fifth student score more than the first one?
Official text KöMaL. Quoted with source.
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