AP Sum of Odd Terms (Jee Mains) | ExamDuo
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Arithmetic and Geometric Progression
Medium
AP Sum of Odd Terms
If the sum of first 11 terms of an A.P.,
a
1
a
2
,
a
3
,
.
.
.
.
is
0
(
a
1
≠
0
)
,
then the sum of the A.P.,
a
1
,
a
3
,
a
5
,
.
.
.
.
,
a
23
is
k
a
1
,
where
k
is equal to :
Ask about this question
SELECT ONE OPTION
A
121
10
B
−
72
5
C
72
5
D
−
121
10
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