Question

3. Find the HM of 4, 5, 8, 11, 14, 18​

Answer 1

Explanation:

Step-by-step explanation:

A. M =a+b=10

G.m=

\sqrt{ab} = 8

ab

=8

Squarring both sides we get ab=64

\begin{gathered} \\ harmonic \: mean = \frac{2ab}{a + b} \end{gathered}

harmonicmean=

a+b

2ab

After putting values

\frac{128}{10}

10

128

\frac{64}{5}

5

64