EduSahara™ Worksheet

Question 1

1.

The scores obtained by 7 students in a test are given below. Find the mean score.
3

3

18

2

5

15

12

(i)

16
(ii)

18
(iii)

2
(iv)

5
(v)

8

2
7

Question 2

2.

Rainfall of 10 days (in mm) are given below. Find the mean rainfall.

10

10

13

10

11

5

13

9

5

15

(i)

111
10

mm
(ii)

101
10

mm
(iii)

121
10

mm
(iv)

103
10

mm
(v)

51
5

mm

Question 3

3.

Scores of 14 students are given below. Find the mean score.

87

74

90

75

76

70

76

78

89

78

84

73

81

82

(i)

163
2
(ii)

80
(iii)

159
2
(iv)

161
2

Question 4

4.

Temperatures of 15 days (in °C) are given below. Find the mean temperature.

32

28

25

34

26

25

26

31

35

27

32

29

30

34

29

(i)

473
15

°C
(ii)

89
3

°C
(iii)

148
5

°C
(iv)

458
15

°C
(v)

443
15

°C

Question 5

5.

Weights of 12 students (in kg) are given below. Find the mean weight.

45

58

55

41

57

56

43

56

57

40

52

45

(i)

629
12

kg
(ii)

605
12

kg
(iii)

101
2

kg
(iv)

607
12

kg
(v)

617
12

kg

Question 6

6.

Daily wages of 10 labourers (in ₹) are given below. Find the mean wage.

331

375

320

349

439

355

459

489

429

333

(i)

₹

388.10
(ii)

₹

388.90
(iii)

₹

387.90
(iv)

₹

389.90
(v)

₹

388.00

Question 7

7.

Find the mean of all prime numbers between 20 and 60.

(i)

201
5
(ii)

41
(iii)

121
3
(iv)

119
3

Question 8

8.

Find the mean of all prime numbers between 10 and 90.

(i)

189
4
(ii)

379
8
(iii)

473
10
(iv)

95
2
(v)

471
10

Question 9

9.

Find the mean of first 10 multiples of 11.

(i)

241
4
(ii)

121
2
(iii)

61
(iv)

119
2
(v)

123
2

Question 10

10.

Find the mean of first 6 whole numbers.

(i)

7
2
(ii)

9
4
(iii)

5
2
(iv)

3
2
(v)

3

Question 11

11.

Find the mean of first 7 multiples of 6.

(i)

26
(ii)

25
(iii)

24
(iv)

21
(v)

23

Question 12

12.

Find the mean of the first 20 odd numbers.

(i)

21
(ii)

19
(iii)

23
(iv)

20
(v)

18

Question 13

13.

Find the mean of the first 10 even numbers.

(i)

12
(ii)

13
(iii)

11
(iv)

8
(v)

10

Question 14

14.

The marks obtained by 15 students in a test are given below. Find their mean marks.

41

18

40

31

18

37

43

33

41

40

8

12

11

48

31

(i)

30
(ii)

454
15
(iii)

452
15
(iv)

392
13
(v)

512
17

Question 15

15.

Heights of 11 students (in cm) are given below. Find the mean height.

151

147

141

154

173

165

131

174

169

156

138

(i)

1710
11

cm
(ii)

1701
11

cm
(iii)

1699
11

cm
(iv)

1721
11

cm
(v)

1700
11

cm

Question 16

16.

Heights of 12 plants (in cm) are given below. Find the mean height.

83

61

99

83

70

74

58

91

59

97

81

50

(i)

155
2

cm
(ii)

151
2

cm
(iii)

76

cm
(iv)

153
2

cm

Question 17

17.

Ages of 13 students (in years) are given below. Find the mean age.

14

10

14

13

13

15

14

11

14

14

13

13

13

(i)

171
13

years
(ii)

184
13

years
(iii)

172
13

years
(iv)

173
13

years
(v)

197
13

years

Assignment Key