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RBI Assistant Prelims 2016 Sitting 1 Paper
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© examsnet.com
Question : 49 of 99
Marks:
+1
,
-0
I.
x
2
−
7
x
+
10
=
0
II.
y
2
−
12
y
+
35
=
0
Your Answer:
Validate
Solution:
(
4
)
I.
x
2
−
7
x
+
10
=
0
⇒
x
2
−
2
x
−
5
x
+
10
=
0
⇒
x
(
x
−
2
)
−
5
(
x
−
2
)
=
0
⇒
(
x
−
5
)
(
x
−
2
)
=
0
⇒
x
=
5
or, 2
II
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
or, 7
Clearly,
x
<
y
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