EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Real Numbers

Grade : CBSE Grade X

License : Non Commercial Use

Question 1

1.

Find the HCF of
{48,264,210,282}

(i)

4
(ii)

7
(iii)

8
(iv)

5
(v)

6

Question 2

2.

Find the total number of factors of
10125

(i)

21
(ii)

22
(iii)

17
(iv)

19
(v)

20

Question 3

3.

The recurring part of the decimal
4.55555555555555...
is

(i)

555
(ii)

5
(iii)

4.5
(iv)

55
(v)

554

Question 4

4.

6.1 =

(i)

61
10
(ii)

610
(iii)

61
(iv)

61
1000
(v)

61
100

Question 5

5.

Find the LCM of
{9,8}

(i)

73
(ii)

71
(iii)

72
(iv)

75
(v)

70

Question 6

6.

Find the total number of factors of
952

(i)

17
(ii)

14
(iii)

18
(iv)

16
(v)

15

Question 7

7.

Find the LCM of
{180,48,156,168}

(i)

65520
(ii)

65521
(iii)

65519
(iv)

65518
(v)

65522

Question 8

8.

Which of the following is an irrational number?

(i)

√

74
(ii)

24
(iii)

(-9)
(iv)

10.1481
(v)

10
22

Question 9

9.

Express
1
10
as a decimal correct to 1 decimal places

(i)

0.2
(ii)

1
(iii)

-0.1
(iv)

0
(v)

0.1

Question 10

10.

Find the number of prime factors of
81

(i)

1
(ii)

4
(iii)

2
(iv)

3
(v)

0

Question 11

11.

Find the LCM of
{30,240,180}

(i)

719
(ii)

717
(iii)

721
(iv)

723
(v)

720

Question 12

12.

Express
19
100
as a decimal correct to 2 decimal places

(i)

1.9
(ii)

-0.01
(iii)

0.02
(iv)

0.19
(v)

0.29

Question 13

13.

The recurring part of the decimal
7.
7
is

(i)

77
(ii)

7.7
(iii)

777
(iv)

7

Question 14

14.

6.13 =

(i)

613
10000
(ii)

613
100
(iii)

613
1000
(iv)

613
(v)

613
10

Question 15

15.

Convert the fraction
293
27
to non-terminating recurring decimal

(i)

0.10
851
(ii)

1085.
185
(iii)

108.
518
(iv)

1.0
851
(v)

10.
851

Question 16

16.

Find the LCM of
{204,120}

(i)

2040
(ii)

2038
(iii)

2041
(iv)

2039
(v)

2042

Question 17

17.

Convert the non-terminating recurring decimal
10.94444444444444...

to rational number

(i)

197
18
(ii)

65
6
(iii)

197
20
(iv)

199
18
(v)

197
16

Question 18

18.

Find the LCM of
{90,210}

(i)

631
(ii)

630
(iii)

632
(iv)

629
(v)

628

Question 19

19.

Find the HCF of
{14,28,20,45}

(i)

(-1)
(ii)

0
(iii)

2
(iv)

1
(v)

3

Question 20

20.

Find the HCF of
{300,45}

(i)

14
(ii)

15
(iii)

12
(iv)

16
(v)

18

Question 21

21.

Find the total number of factors of
77

(i)

5
(ii)

3
(iii)

4
(iv)

2
(v)

6

Question 22

22.

Find the number of prime factors of
46

(i)

4
(ii)

0
(iii)

2
(iv)

1
(v)

3

Question 23

23.

Find the number of prime factors of
13125

(i)

4
(ii)

0
(iii)

3
(iv)

1
(v)

2

Question 24

24.

Find the number of prime factors of
420

(i)

7
(ii)

5
(iii)

3
(iv)

4
(v)

1

Question 25

25.

8.32 =

(i)

208
25
(ii)

832
(iii)

104
125
(iv)

52
625
(v)

416
5

Assignment Key