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Byju's Answer
Standard X
Mathematics
Sum of Infinite Terms of a GP
The A.M. of t...
Question
The A.M. of two numbers exceeds the G.M. by
3
2
and the G.M. exceeds the H.M. by
6
5
;
find the larger number.
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Solution
Let the numbers be
a
and
b
,
now using the relation
G
2
=
A
H
=
(
G
+
3
2
)
(
G
−
6
5
)
=
G
2
+
3
10
G
−
9
5
⇒
G
=
6
i.e.
a
b
=
36
also
a
+
b
=
15
Hence the two numbers are
3
and
12.
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If the A.M. between two numbers exceeds their G.M. by 12 and the G.M. exceeds their H.M. by 36/5, then the greater of the two numbers is
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