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Byju's Answer
Standard X
Mathematics
Sum of N Terms of an AP
25th term of ...
Question
25
t
h
term of the
A
.
P
:
5
,
5
2
,
0
,
−
5
2
,
.
.
.
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Solution
5
,
5
2
,
0
,
−
5
2
,
.
.
are in A.P
where the first term
=
a
=
5
2
and the common difference
d
=
5
2
−
5
=
5
−
10
2
=
−
5
2
n
t
h
term
=
t
n
=
a
+
(
n
−
1
)
d
t
25
=
5
2
+
(
25
−
1
)
−
5
2
=
5
2
−
24
×
5
2
=
5
−
120
2
=
−
115
2
∴
25
t
h
term of an A.P is
−
115
2
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0
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