EduSahara™ Assignment
Name : Order of Matrix
Chapter : Matrices
Grade : ICSE Grade X
License : Non Commercial Use
Question
1
1.
The order of matrix A =
[
5
-5
3
]
is
(i)
2 ✕ 1
(ii)
3 ✕ 1
(iii)
4 ✕ 1
(iv)
1 ✕ 3
(v)
3 ✕ 2
Question
2
2.
The order of matrix A =
[
3
-1
]
is
(i)
2 ✕ 2
(ii)
1 ✕ 1
(iii)
1 ✕ 2
(iv)
3 ✕ 1
(v)
2 ✕ 1
Question
3
3.
The order of matrix A =
[
0
-5
]
is
(i)
2 ✕ 3
(ii)
2 ✕ 2
(iii)
1 ✕ 3
(iv)
1 ✕ 2
(v)
2 ✕ 1
Question
4
4.
The order of matrix A =
[
-2
1
-1
]
is
(i)
2 ✕ 4
(ii)
3 ✕ 1
(iii)
2 ✕ 3
(iv)
1 ✕ 3
(v)
1 ✕ 4
Question
5
5.
The order of matrix A =
[
-4
2
-5
-5
]
is
(i)
1 ✕ 2
(ii)
2 ✕ 3
(iii)
3 ✕ 2
(iv)
2 ✕ 2
(v)
2 ✕ 1
Question
6
6.
The order of matrix A =
[
2
-5
5
-4
1
5
]
is
(i)
3 ✕ 2
(ii)
2 ✕ 4
(iii)
1 ✕ 3
(iv)
2 ✕ 3
(v)
3 ✕ 3
Question
7
7.
The order of matrix A =
[
-2
-4
5
0
-5
3
]
is
(i)
3 ✕ 2
(ii)
2 ✕ 2
(iii)
2 ✕ 3
(iv)
4 ✕ 2
(v)
3 ✕ 3
Question
8
8.
The order of matrix A =
[
1
4
5
5
-3
4
5
5
-1
]
is
(i)
2 ✕ 3
(ii)
3 ✕ 2
(iii)
3 ✕ 4
(iv)
3 ✕ 3
(v)
4 ✕ 3
Question
9
9.
A
4 ✕ 3
matrix has
a)
4
rows and
3
columns
b)
7
rows and
3
columns
c)
3
rows and
4
columns
d)
4
rows and
12
columns
(i)
{a}
(ii)
{b,a}
(iii)
{c,a}
(iv)
{d,b,a}
Question
10
10.
Which of the following matrices is a
2 ✕ 1
matrix ?
(i)
[
9
1
]
(ii)
[
6
6
1
1
4
4
]
(iii)
[
1
9
6
]
(iv)
[
9
9
7
5
]
(v)
[
8
6
]
Question
11
11.
Which of the following matrices is a
1 ✕ 2
matrix ?
(i)
[
8
5
8
]
(ii)
[
3
8
1
5
]
(iii)
[
2
2
5
4
7
2
]
(iv)
[
5
5
]
(v)
[
5
1
]
Question
12
12.
Which of the following matrices is a
2 ✕ 2
matrix ?
(i)
[
3
8
1
8
4
8
]
(ii)
[
8
2
9
3
8
2
9
7
4
]
(iii)
[
2
8
5
8
]
(iv)
[
2
2
8
3
4
1
2
2
3
]
(v)
[
5
7
5
8
5
5
]
Question
13
13.
Which of the following matrices is a
2 ✕ 3
matrix ?
(i)
[
7
6
6
9
7
1
]
(ii)
[
2
7
9
4
6
5
5
5
]
(iii)
[
1
4
1
5
3
5
]
(iv)
[
4
3
8
7
3
9
6
6
7
7
4
2
]
(v)
[
7
3
2
7
8
5
5
7
4
]
Question
14
14.
Which of the following matrices is a
3 ✕ 2
matrix ?
(i)
[
2
8
5
3
3
6
]
(ii)
[
9
1
6
4
5
1
6
8
]
(iii)
[
8
9
4
3
4
5
]
(iv)
[
1
8
1
6
2
8
2
3
6
1
4
6
]
(v)
[
3
4
3
4
2
6
7
8
4
]
Question
15
15.
Which of the following matrices is a
3 ✕ 3
matrix ?
(i)
[
5
3
3
4
4
4
4
7
3
]
(ii)
[
3
5
9
8
6
6
2
6
8
5
2
1
]
(iii)
[
1
2
9
4
9
5
2
3
6
9
4
6
]
(iv)
[
4
3
3
5
5
1
1
9
6
9
5
4
5
4
2
7
]
(v)
[
5
3
4
7
6
8
9
4
7
8
5
6
3
7
9
7
]
Question
16
16.
Which of the following is a square matrix?
(i)
[
2
1
5
7
4
7
]
(ii)
[
3
1
2
9
5
3
1
7
7
5
7
6
]
(iii)
[
8
6
5
5
9
6
3
8
7
4
5
7
8
6
5
7
5
9
1
5
]
(iv)
[
4
5
8
9
8
9
9
4
4
4
8
3
]
(v)
[
4
4
1
2
4
2
7
9
7
]
Question
17
17.
Which of the following is a rectangular matrix?
(i)
[
1
1
8
7
2
3
8
8
3
]
(ii)
[
4
7
5
9
2
6
5
6
5
8
1
9
3
7
9
]
(iii)
[
6
2
3
2
]
(iv)
[
4
]
(v)
[
5
8
5
6
3
9
6
3
5
8
8
7
6
7
7
8
]
Question
18
18.
Which of the following is a row matrix
(i)
[
9
2
]
(ii)
[
9
6
6
]
(iii)
[
8
5
6
7
3
]
(iv)
[
2
6
]
(v)
[
5
8
3
8
]
Question
19
19.
Which of the following is a column matrix
(i)
[
3
9
7
3
8
6
7
4
3
]
(ii)
[
6
9
7
2
]
(iii)
[
8
5
]
(iv)
[
9
6
]
(v)
[
8
8
1
]
Question
20
20.
If a matrix has
8
elements, what are the possible orders it can have?
(i)
{1 ✕ 8,4 ✕ 2,8 ✕ 1}
(ii)
{1 ✕ 8,2 ✕ 4,8 ✕ 1}
(iii)
{1 ✕ 8,2 ✕ 4,4 ✕ 2,8 ✕ 1}
(iv)
{2 ✕ 4,4 ✕ 2,8 ✕ 1}
Assignment Key
1) (ii)
2) (v)
3) (iv)
4) (iv)
5) (iv)
6) (iv)
7) (i)
8) (iv)
9) (i)
10) (i)
11) (v)
12) (iii)
13) (iii)
14) (iii)
15) (i)
16) (v)
17) (ii)
18) (iv)
19) (iii)
20) (iii)
