Maths Olympiad Prep

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Algebra Difficulty 2.0 Junior Find the answer United Kingdom

The following twelve integers are written in ascending order: 1,x,x,x,y,y,y,y,y,8,9,111, x, x, x, y, y, y, y, y, 8, 9, 11. The mean of these twelve integers is 7. What is the median?

(A) 66 (B) 77 (C) 7.57.5 (D) 88 (E) 99

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