If \[{{A}_{1}},\ {{A}_{2}}\] are the two A.M.'s between two numbers \[a\]and \[b\]and \[{{G}_{1}},\ {{G}_{2}}\] be two G.M.'s between same two numbers, then \[\frac{{{A}_{1}}+{{A}_{2}}}{{{G}_{1}}.{{G}_{2}}}=\] [Roorkee 1983; DCE 1998]

If \[{{A}_{1}},\ {{A}_{2}}\] are the two A.M.'s between two numbers \[

1.	If \[{{A}_{1}},\ {{A}_{2}}\] are the two A.M.'s between two numbers \[a\]and \[b\]and \[{{G}_{1}},\ {{G}_{2}}\] be two G.M.'s between same two numbers, then \[\frac{{{A}_{1}}+{{A}_{2}}}{{{G}_{1}}.{{G}_{2}}}=\] [Roorkee 1983; DCE 1998]
A.	\[\frac{a+b}{ab}\]
B.	\[\frac{a+b}{2ab}\]
C.	\[\frac{2ab}{a+b}\]
D.	\[\frac{ab}{a+b}\]
Answer» B. \[\frac{a+b}{2ab}\]

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If \[{{A}_{1}},\ {{A}_{2}}\] are the two A.M.'s between two numbers \[a\]and \[b\]and \[{{G}_{1}},\ {{G}_{2}}\] be two G.M.'s between same two numbers, then \[\frac{{{A}_{1}}+{{A}_{2}}}{{{G}_{1}}.{{G}_{2}}}=\] [Roorkee 1983; DCE 1998]

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