The reciprocal of the arithmetic mean of the reciprocals

A . M .

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G . M .

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H . M .

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n o n e

o f

t h e s e

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Solution

The correct option is C $H . M .$
The harmonic mean is a type of numerical average. It is calculated by dividing the number of observations by the reciprocal of each number in the series. Thus, the harmonic mean is the reciprocal of the arithmetic mean of the reciprocals.

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The relation between A.M.(arithmetic mean), G.M.(geometric mean) and H.M. (harmonic mean ) of any two distinct positive numbers is

\geq

\frac{144}{15}, 15

12

=

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