The harmonic mean between two numbers is \( 21 / 5 \),
\( \mathrm{P...
The harmonic mean between two numbers is \( 21 / 5 \),
\( \mathrm{P} \) their A.M. ' \( A \) ' and G.M. ' \( G \) ' satisfy the relation \( 3 A \)
W \( +G^{2}=36 \). Then find the sum of square of numbers.
(1) 50
(2) 58
(3) 54
(4) 56
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