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Arithmetic Sequences
medium
0:00.0
In an AP,
S
5
=
40
S_5 = 40
S
5
=
40
and
S
6
=
60
S_6 = 60
S
6
=
60
. What is
a
6
a_6
a
6
?
A
15
15
15
B
20
20
20
C
25
25
25
D
30
30
30
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