If the H.M. of and is , G.M. of and is and A.M. of and is , then the G.M. of and is
Explanation for the correct option:
It is given that the H.M. of and is .
Thus,
It is given that the G.M. of and is .
Thus, .
It is given that the A.M. of and is .
Thus,
Put, and in the equation .
Therefore, the G.M. of and can be given by .
Hence, option (B) is the correct answer.