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The Harmonic Mean (H.M.) of the series 1, 2, 4 is

Question:

The Harmonic Mean (H.M.) of the series 1, 2, 4 is

A.

5

B.

7

C.

7/5

D.

12/7

Answer» d. 12/7

Note: The above multiple-choice question is for all general and Competitive Exams in India