The average (arithmetic mean) of 7, 8, 10 and 11 equals the average of 2, 9, 13, and  Answers.
A) 7  B) 9  C) 10  D) 12  E) 13
7 + 8 + 10 + 11 = 2 + 9 + 13 + x   36 = 24 + x   Or, x = 12   Hence, Answer will be (12) 12
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The average (arithmetic mean) of 7, 8, 10 and 11 equals the average of 2, 9, 13, and