9. If the mean of 9, 10, 15, k, 6, 8 and 12 is 11 then the value of k – InterviewSolution

1.	9. If the mean of 9, 10, 15, k, 6, 8 and 12 is 11 then the value of k is?a) 6 b) 11 c) 14 d) 17
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