EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Real Numbers

Grade : CBSE Grade X

License : Non Commercial Use

Question 1

1.

The recurring part of the decimal
5.59259259259259...
is

(i)

592
(ii)

5925592
(iii)

592592
(iv)

59255
(v)

5.592

Question 2

2.

Which of the following fractions converts to a non-terminating recurring decimal?

(i)

132
1
(ii)

2640
40
(iii)

3060
80
(iv)

67
1
(v)

341
18

Question 3

3.

Find the product of LCM and HCF of
{10,18,14}

(i)

1259
(ii)

1257
(iii)

1262
(iv)

1261
(v)

1260

Question 4

4.

Find the prime factorization of
648

(i)

2 3

✕

3
(ii)

2 3

✕

3 4
(iii)

2 4

✕

3 4
(iv)

2 3

✕

3 3
(v)

2 3

✕

5 4

Question 5

5.

Find the LCM of
{14,12,6,8}

(i)

169
(ii)

168
(iii)

170
(iv)

167
(v)

166

Question 6

6.

15.20 =

(i)

38
25
(ii)

76
5
(iii)

152
(iv)

1520
(v)

19
125

Question 7

7.

Convert the non-terminating recurring decimal
16.
7
to rational number

(i)

151
9
(ii)

151
7
(iii)

151
11
(iv)

17
(v)

149
9

Question 8

8.

Find the prime factorization of
84

(i)

2 3

✕

3

✕

7
(ii)

2 2

✕

3

✕

7
(iii)

2 2

✕

5

✕

7
(iv)

2 2

✕

3 -1

✕

7
(v)

2 2

✕

3

✕

6

Question 9

9.

2.695 =

(i)

539
2000
(ii)

539
20
(iii)

539
20000
(iv)

539
200
(v)

539
2

Question 10

10.

3.9 =

(i)

39
1000
(ii)

39
10
(iii)

39
(iv)

390
(v)

39
100

Question 11

11.

Convert the fraction
274
27
to non-terminating recurring decimal

(i)

0.10
148
(ii)

1014.
814
(iii)

10.
148
(iv)

101.
481
(v)

1.0
148

Question 12

12.

Find the HCF of
{720,72,1200}

(i)

24
(ii)

25
(iii)

22
(iv)

27
(v)

23

Question 13

13.

Find the product of LCM and HCF of
{21,6,22,27}

(i)

4159
(ii)

4158
(iii)

4160
(iv)

4155
(v)

4157

Question 14

14.

7.9 =

(i)

790
(ii)

79
10
(iii)

79
(iv)

79
1000
(v)

79
100

Question 15

15.

Find the LCM of
{240,48}

(i)

240
(ii)

243
(iii)

238
(iv)

239
(v)

241

Question 16

16.

8.2 =

(i)

41
5
(ii)

820
(iii)

41
500
(iv)

82
(v)

41
50

Question 17

17.

Find the total number of factors of
600

(i)

24
(ii)

27
(iii)

25
(iv)

23
(v)

22

Question 18

18.

Find the LCM of
{9,12}

(i)

36
(ii)

37
(iii)

34
(iv)

39
(v)

35

Question 19

19.

Find the HCF of
{210,240}

(i)

31
(ii)

32
(iii)

29
(iv)

27
(v)

30

Question 20

20.

Find the HCF of
{38,27,12,33}

(i)

(-1)
(ii)

0
(iii)

1
(iv)

2
(v)

3

Question 21

21.

Find the product of LCM and HCF of
{22,25}

(i)

550
(ii)

551
(iii)

548
(iv)

553
(v)

549

Question 22

22.

Find the HCF of
{36,6}

(i)

7
(ii)

8
(iii)

5
(iv)

3
(v)

6

Question 23

23.

Find the number of prime factors of
69

(i)

2
(ii)

0
(iii)

1
(iv)

3
(v)

4

Question 24

24.

Find the LCM of
{360,80}

(i)

721
(ii)

718
(iii)

723
(iv)

719
(v)

720

Question 25

25.

Express
77
100
as a decimal correct to 2 decimal places

(i)

0.87
(ii)

0.77
(iii)

0.57
(iv)

7.7
(v)

0.08

Assignment Key