MathematicsStatisticsJAMB
The mean of x, 2x, 3x and 6 is 9. Find x.
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Answer: A. 5
(6x + 6)/4 = 9 gives 6x + 6 = 36, so x = 5.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.
Mathematics · Statistics
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