Q: The geometric mean and harmonic mean of two non–negative observations are 10 and 8 respectively. Then what is the arithmetic mean of the observations equal to? दो ऋणेतर प्रेक्षणों का गुणोत्तर माध्य एवं हरात्मक माध्य क्रमश: 10 और 8 है। तब उन प्रेक्षणों का समांतर माध्य किसके बराबर है?
A.
4
B.
9
C.
12.5
D.
25
Correct Answer:
Option C -
Explanations:
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