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Class VI
Class VII
Class VIII
Class IX
Class X
CBSE Grade IX - Number Systems
Question
1
1.
Simplify the expression
6
9
✕
6
9
6
17
3
18
6
19
9
18
6
18
Question
2
2.
The simplest form of the fraction
36
72
is
3
2
1
4
(
-1
2
)
1
1
2
Question
3
3.
Rationalise the denominator of
1
(
3
√
2
−
3
√
3
)
(
−
3
√
4
−
3
√
3
−
3
√
9
)
(
−
3
√
4
−
3
√
8
−
3
√
9
)
(
−
3
√
4
−
3
√
6
−
3
√
9
)
(
−
3
√
4
−
3
√
6
−
9
)
(
−
3
√
4
−
3
√
6
−
5
√
9
)
Question
4
4.
2.322 =
1161
5
1161
500
1161
50000
1161
50
1161
5000
Question
5
5.
3
4
=
-4
(
1
3
)
-5
(
1
3
)
1
-4
(
-1
3
)
-3
(
1
3
)
Question
6
6.
12
√
8
✕
12
√
7
=
10
√
56
12
√
53
12
√
59
12
√
56
14
√
56
Question
7
7.
Simplify the expression
(
7
3
)
3
✕
(
7
3
)
3
✕
(
7
3
)
3
1
3
6
3
8
3
7
5
7
Question
8
8.
(
(
-3
2
)
✕
7
1
✕
5
4
)
-5/3
=
(
-5/3
)
(
-3
2
)
✕
7
-1
✕
-1
(
5
4
)
(
-5/3
)
(
-3
2
)
✕
(
-5
3
)
9
✕
(
-5/3
)
(
7
4
)
(
-5/3
)
(
-3
2
)
✕
(
-5
3
)
7
✕
(
-5/3
)
(
5
4
)
(
-5/3
)
(
-3
2
)
✕
(
-5
3
)
5
✕
(
-5/3
)
(
3
4
)
(
-5/3
)
(
-3
2
)
✕
7
-5
✕
-5
(
5
4
)
Question
9
9.
[
4
]
-5
(
7
6
)
=
-20
(
5
6
)
-21
(
7
6
)
-20
(
7
6
)
-19
(
7
6
)
-20
(
3
2
)
Question
10
10.
Which of the following decimal numbers lie between
4033
and
4034
?
403.4
4034.2
40336
4032
4033.6
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