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IBPS RRB Officer Prelims 09 Sep 2017 Shift 2 Paper
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© examsnet.com
Question : 51
Total: 80
I
.
2
x
2
+
11
x
+
5
=
0
I
I
.
y
2
+
12
y
+
35
=
0
if x > y
if x
>
y
if x < y
if x
<
y
if x = y orthe relationship between x and ycannot be established.
Validate
Solution:
(2)
I
.
2
x
2
+
11
x
+
5
=
0
⇒
2
x
2
+
x
+
10
x
+
5
=
0
⇒
x
(
2
x
+
1
)
+
5
(
2
x
+
1
)
=
0
⇒
(
x
+
5
)
(
2
x
+
1
)
=
0
⇒
x
=
–
5
o
r
,
–
1
2
I
I
.
y
2
+
12
y
+
35
=
0
⇒
y
2
+
5
y
+
7
y
+
35
=
0
⇒
y
(
y
+
5
)
+
7
(
y
+
5
)
=
0
⇒
(
y
+
5
)
(
y
+
7
)
=
0
⇒
y
=
–
5
o
r
,
–
7
Clearly, x
>
y
© examsnet.com
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