Question

# If the AM of two numbers is 9 and their HM is 4, then their GM is

Solution

## For any given numbers, their means, Arithmetic mean (AM), Geometric mean, (GM) and Harmonic mean are related by the relation $$GM^2 = AM \times HM$$So, $$GM^2 = 9 \times 4 = 36$$$$=> GM = 6$$Maths

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