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Class 9 Practice Level 1 – Number Systems
Total questions: 40
1.
Which of the following numbers is a rational number?
Topic:
Real Numbers
$ \displaystyle \sqrt{2}$
$ \displaystyle 3.14$
$ \displaystyle \frac{1}{2}$
$ \displaystyle \pi $
None
2.
Identify the irrational number.
Topic:
Real Numbers
$ \displaystyle \sqrt{3}$
$ \displaystyle 4$
$ \displaystyle -5$
$ \displaystyle \frac{2}{3}$
None
3.
Which of the following is a terminating decimal?
Topic:
Real Numbers
$ \displaystyle \frac{1}{3}$
$ \displaystyle \frac{1}{4}$
$ \displaystyle \frac{1}{7}$
$ \displaystyle \frac{1}{9}$
None
4.
Which of the following represents a rational number?
Topic:
Real Numbers
$ \displaystyle \sqrt{5}$
$ \displaystyle \pi $
$ \displaystyle 0.333...$
$ \displaystyle \mathbf{e}\text{ }\left( {\mathbf{Euler}'\mathbf{s}\text{ }\mathbf{number}} \right)$
None
5.
What is the decimal expansion of $ \displaystyle \frac{1}{8}$ ?
Topic:
Real Numbers
0.125
0.0125
0.1255
0.01255
None
6.
Which of the following numbers is a perfect square?
Topic:
Real Numbers
16
18
20
22
None
7.
Which of the following numbers is not a rational number?
Topic:
Real Numbers
0.25
$ \displaystyle \frac{1}{3}$
2.5
$ \displaystyle \sqrt{7}$
None
8.
What is the square root of 64?
Topic:
Real Numbers
6
7
8
9
None
9.
Which of the following fractions is equivalent to 0.75?
Topic:
Real Numbers
$ \displaystyle \frac{1}{2}$
$ \displaystyle \frac{3}{4}$
$ \displaystyle \frac{2}{5}$
$ \displaystyle \frac{4}{5}$
None
10.
Identify the irrational number among the following:
Topic:
Real Numbers
√25
√16
√3
√4
None
11.
Which of the following represents a non-terminating repeating decimal?
Topic:
Real Numbers
0.5
0.125
0.333...
0.75
None
12.
What is the product of the square roots of 16 and 25?
Topic:
Real Numbers
15
20
30
40
None
13.
Which of the following numbers is a rational number?
Topic:
Real Numbers
$ \displaystyle \sqrt{2}$
$ \displaystyle 0.101001000...$
$ \displaystyle \pi $
$ \displaystyle \frac{{-3}}{7}$
None
14.
What is the square root of 49?
Topic:
Real Numbers
5
6
7
8
None
15.
Identify the irrational number among the following:
Topic:
Real Numbers
1.732...
2.5
0.75
$ \displaystyle \frac{1}{3}$
None
16.
Which of the following is a terminating decimal?
Topic:
Real Numbers
$ \displaystyle \frac{1}{3}$
$ \displaystyle \frac{1}{5}$
$ \displaystyle \frac{1}{7}$
$ \displaystyle \frac{1}{9}$
None
17.
Which of the following numbers is a perfect square?
Topic:
Real Numbers
12
14
15
16
None
18.
What is the decimal expansion of $ \displaystyle \frac{3}{8}$ ?
Topic:
Real Numbers
0.375
0.0375
0.3755
0.03755
None
19.
Which of the following is a rational number?
Topic:
Real Numbers
$ \displaystyle \sqrt{3}$
$ \displaystyle \sqrt{5}$
0.25
$ \displaystyle \pi $
None
20.
What is the square root of 81?
Topic:
Real Numbers
7
8
9
10
None
21.
Identify the irrational number among the following:
Topic:
Real Numbers
1.414...
2.5
0.75
$ \displaystyle \frac{1}{3}$
None
22.
Which of the following represents a terminating decimal?
Topic:
Real Numbers
$ \displaystyle \frac{2}{3}$
$ \displaystyle \frac{1}{3}$
$ \displaystyle \frac{5}{8}$
$ \displaystyle \frac{7}{9}$
None
23.
Which of the following numbers is a perfect square?
Topic:
Real Numbers
18
20
25
28
None
24.
What is the decimal expansion of $ \displaystyle \frac{7}{8}$?
Topic:
Real Numbers
0.875
0.0875
0.8755
0.08755
None
25.
Which of the following is a rational number?
Topic:
Real Numbers
$ \displaystyle \sqrt{7}$
$ \displaystyle \sqrt{{11}}$
$ \displaystyle 0.125$
$ \displaystyle \pi $
None
26.
What is the square root of 36?
Topic:
Real Numbers
5
6
7
8
None
27.
Identify the irrational number among the following:
Topic:
Real Numbers
1.732...
2.75
0.25
$ \displaystyle \frac{1}{4}$
None
28.
Which of the following represents a non-terminating repeating decimal?
Topic:
Real Numbers
0.5
0.625
0.666...
0.75
None
29.
What is the product of the square roots of 9 and 16?
Topic:
Real Numbers
10
12
14
15
None
30.
Which of the following numbers is a rational number?
Topic:
Real Numbers
$ \displaystyle \sqrt{2}$
$ \displaystyle 0.101001000...$
$ \displaystyle \pi $
$ \displaystyle \frac{{-5}}{6}$
None
31.
What is the square root of 100?
Topic:
Real Numbers
8
9
10
11
None
32.
Identify the irrational number among the following:
Topic:
Real Numbers
1.414...
2.8
0.5
$ \displaystyle \frac{1}{2}$
None
33.
Which of the following represents a terminating decimal?
Topic:
Real Numbers
$ \displaystyle \frac{1}{7}$
$ \displaystyle \frac{4}{9}$
$ \displaystyle \frac{1}{2}$
$ \displaystyle \frac{5}{9}$
None
34.
Which of the following numbers is a perfect square?
Topic:
Real Numbers
21
24
27
36
None
35.
What is the decimal expansion of $ \displaystyle \frac{5}{8}$ ?
Topic:
Real Numbers
0.625
0.0625
0.6255
0.06255
None
36.
Which of the following is a rational number?
Topic:
Real Numbers
$ \displaystyle \sqrt{5}$
$ \displaystyle \sqrt{8}$
0.75
$ \displaystyle \pi $
None
37.
What is the square root of 25?
Topic:
Real Numbers
3
4
5
6
None
38.
Identify the irrational number among the following:
Topic:
Real Numbers
1.732...
2.75
0.125
$ \displaystyle \frac{1}{4}$
None
39.
Which of the following represents a non-terminating repeating decimal?
Topic:
Real Numbers
0.5
0.875
0.777...
0.75
None
40.
What is the product of the square roots of 4 and 9?
Topic:
Real Numbers
4
5
6
7
None
1 out of 40
Time's up
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