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Sum
Find A.M. of two positive numbers whose G.M. and H.M. are 4 and `16/5`.
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Solution
G.M. = 4, H.M. = `16/5`
∵ (G.M.)2 = (A.M.) (H.M.)
∴ 16 = `"A.M" xx 16/5`
∴ A.M. = 5
Concept: Types of Means
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