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AP EAPCET 04-Jul-2022 Shift 2 Paper
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© examsnet.com
Question : 4
Total: 160
If
a
,
b
,
c
are respectively the
5
th
,
8
th
,
13
th
terms of an arithmetic progression, then
|
a
5
1
b
8
1
c
13
1
|
=
0
1
a
b
c
520
Validate
Solution:
👈: Video Solution
Given, a, b and c are respectively 5 th, 8 th, and 13 th terms of arithmetic progression.
∴
a
=
P
+
(
5
−
1
)
d
[where
P
be first term]
⇒
a
=
P
+
4
d
b
=
P
+
(
8
−
1
)
d
⇒
b
=
P
+
7
d
c
=
P
+
(
13
−
1
)
d
⇒
c
=
P
+
12
d
∴
|
a
5
1
b
8
1
c
13
1
|
=
|
P
+
4
d
5
1
P
+
7
d
8
1
P
+
12
d
13
1
|
=
|
P
5
1
P
8
1
P
13
1
|
+
|
4
d
5
1
7
d
8
1
12
d
13
1
|
=
P
|
1
5
1
1
8
1
1
13
1
|
+
d
|
4
+
1
5
1
7
+
1
8
1
12
+
1
13
1
|
=
P
.0
+
d
|
5
5
1
8
8
1
13
13
1
|
=
P
.0
+
d
.0
=
0
© examsnet.com
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