The harmonic mean of the numbers 3, 6, 9 is: MCQ with Answer and Explanation

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The harmonic mean of the numbers 3, 6, 9 is:

A. 18/11

B. 11/54

C. 54/11

D. 6

Answer: Option C

Solution (By JKSSB Mock Tests)

HM = 3 / (1/3 + 1/6 + 1/9) = 3 / ( (6+3+2)/18 ) = 3 / (11/18) = 54/11 ≈ 4.909.

This question belongs to: Accountancy and Statistics Statistics

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