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What is the GM, if the AM and HM of two numbers are 24 and 6 respectively?

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What is the GM, if the AM and HM of two numbers are 24 and 6 respectively?
1. 12
2. 18
3. 24
4. 27
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1 Answer

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Best answer
Correct Answer - Option 1 : 12

Concept:

The relation between AM, GM and HM:

(GM)2 = (AM) × (HM)

 

Calculation:

Given AM = 24 and HM = 6

And we know that (GM)2 = (AM) × (HM)

⇒ GM =

 \(\sqrt{24\times 6}=\sqrt{144}\\=12 \)

Hence, option (1) is correct.

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