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Mathematics
Problem
Let
a
n
a_n
a
n
be the
n
n
n
th term of an A.P. If
S
n
=
a
1
+
a
2
+
a
3
+
⋯
+
a
n
=
700
S_n = a_1 + a_2 + a_3 + \dots + a_n = 700
S
n
=
a
1
+
a
2
+
a
3
+
⋯
+
a
n
=
700
,
a
6
=
7
a_6 = 7
a
6
=
7
and
S
7
=
7
S_7 = 7
S
7
=
7
, then
a
n
a_n
a
n
is equal to : [April 7, 2025 (II)] (a) 56 (b) 65 (c) 64 (d) 70
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