When the mean, median, and mode of the list
10,2,5,2,4,2,x
are arranged in increasing order, they form a non-constant arithmetic progression. What is the sum of all possible real values of x?
(A) 3 (B) 6 (C) 9 (D) 17 (E) 20
ANSWER: E
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When the mean, median, and mode of the list
10,2,5,2,4,2,x
are arranged in increasing order, they form a non-constant arithmetic progression. What is the sum of all possible real values of x?
(A) 3 (B) 6 (C) 9 (D) 17 (E) 20
ANSWER: E