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RBI Grade B Officers 2011 feb Paper
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© examsiri.com
Question :
122 of 209
Marks:
+1
,
-0
I
x
2
–
10
x
+
24
=
0
I
I
y
2
–
9
y
+
20
=
0
x > y
x
>
y
x < y
x
<
y
x = y or the relationshipcan not be established
Validate
Solution:
(2)
I
.
x
2
–
10
x
+
24
=
0
⇒
x
2
–
6
x
–
4
x
+
24
=
0
⇒
x
(
x
–
6
)
–
4
(
x
–
6
)
=
0
⇒
(
x
–
4
)
(
x
–
6
)
=
0
⇒
x
=
4
o
r
6
I
I
.
y
2
–
9
y
+
20
=
0
⇒
y
2
–
5
y
–
4
y
+
20
=
0
⇒
y
(
y
–
5
)
–
4
(
y
–
5
)
=
0
⇒
(
y
–
4
)
(
y
–
5
)
=
0
⇒
y
=
4
o
r
5
⇒
x
>
y
© examsiri.com
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