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AP ICET 2016 Paper
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© examsnet.com
Question : 138
Total: 200
The sum to infinite terms of the progression
6
,
4
4
5
,
3
21
25
,
.
.
.
.
.
.
is
11
33
60
30
Validate
Solution:
Given :
6
,
4
4
5
,
3
21
25
.
.
.
.
.
.
.
.
∞
or,
6
,
24
5
,
96
25
,
.
.
.
.
∞
It represents an infinite G.P
=
6
,
r
=
(
96
25
)
(
24
5
)
=
(
24
5
)
6
=
4
5
∴
S
∞
=
a
1
−
r
=
6
1
−
4
5
=
6
×
5
=
30
© examsnet.com
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