Question

If for two numbers the mean is 25 and the harmonic mean is 9 what is the geometric mean
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Answer 1

Answer:

We know that,

$(GM)^2=AM.HM$

Given,

Arithmetic Mean (AM) = 25

Harmonic Mean (HM) = 9

=> Geometric Mean = $\sqrt{(9)(25)}$ = (3)(5)

=> Geometric Mean =15

Answer 2

Given,

AM=25 ,HM=9 ,GM?

We know that,

GM²=AM×HM

GM²=25×9

GM²=225

therefore,

GM=15