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Mean

If the Harmon...

Question

If the Harmonic mean of the numbers $2, 3, 4$ is $H$ then $13 H =$

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Solution

$H . M : H = \frac{3}{\frac{1}{2} + \frac{1}{3} + \frac{1}{4}} = \frac{36}{13} \Rightarrow 13 H = 36$

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