The Harmonic Mean (H.M.) of the series 1, 2, 4 is June 12, 2021 – by admin 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.
