Math, asked by dharuman30, 3 months ago

Find the Harmonic Mean of 30 and 70

Answers

Answered by zeesoftzs

0

Step-by-step explanation:

$H. M= \frac{2ab}{a + b} \\ = \frac{2(30)(70)}{30 + 70} \\ = \frac{2(30)(70)}{100} \\ = 2 \times 3 \times 7 \\ H. M= 42$

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