et X consists of 11 different numbers. If the average (arithmetic mean)

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Set X consists of 11 different numbers. If the average (arithmetic mean) of the 10 smallest numbers is -1.6, and the average of the 10 largest numbers is 5.2. What is the range of set X?

A. 3.6
B. 6.8
C. 34
D. 36
E. 68

Answer: E
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