What ratio of students in a 20-student class with total average of 17.06 got at least 17?

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The maximum score is at most 20. The class has 20 students. For math exam the average of the whole class is 17.06. What percent of the class got at least 17 out of 20 in the exam?

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Hint: It could be all of them. They could all have scored $17.06$. The minimum would be when some of the students scored $20$ and the rest scored just under $17$ How many would that be? Your answer should be the range.