1.

Find A.M. of two positive numbers whose G.M. and H.M. are 4 and 16/5 respectively.

Answer»

G.M. = 4, H.M. = 16/5

Now, (G.M.)2 = (A.M.) (H.M.)

∴ 42 = A.M. × 16/5

∴ A.M. = 16 × 5/16

∴ A.M. = 5



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