**CBSE Class 7 Maths – MCQ and Online Tests – Unit 3 – Data Handling**

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**CBSE Class 7 Maths – MCQ and Online Tests – Unit 3 – Data Handling**

The number of tourists visiting a historical place in a week is shown in the following table :

Answer the following related questions.

Question 1.

The difference between the maximum and minimum number of tourists is

(a) 50

(b) 80

(c) 90

(d) 100

## Answer

Answer: (d) 100

Hint:

160 – 60 = 100.

Question 2.

On which day 60 tourists visit?

(a) Monday

(b) Tuesday

(c) Friday

(d) Sunday

## Answer

Answer: (c) Friday

Hint:

60 ? Friday.

Question 3.

What is the difference between the number of tourists visiting on Friday and Monday?

(a) 10

(b) 24

(c) 38

(d) 5

## Answer

Answer: (d) 5

Hint:

65 – 60 = 5.

Question 4.

The sum of the number of tourists visiting on Sunday and Friday is

(a) 160

(b) 60

(c) 220

(d) 100

## Answer

Answer: (c) 220

Hint:

160 + 60 = 220.

Question 5.

On which day is the number of tourists maximum?

(a) Sunday

(b) Wednesday

(c) Tuesday

(d) Saturday

## Answer

Answer: (a) Sunday

Hint:

Sunday ? 160.

Question 6.

A batsman scored the following number of runs in six innings:

35, 30, 45, 65, 39, 20

The mean runs scored by him in an inning is

(a) 39

(b) 38

(c) 37

(d) 40

## Answer

Answer: (a) 39

Hint:

Mean = \(\frac { 35+30+45+65+39+20 }{ 6 } \)

= \(\frac { 234 }{ 6 } \) = 39

Question 7.

The mean of the numbers 10,20, 30 and 40 is

(a) 20

(b) 25

(c) 30

(d) 50

## Answer

Answer: (b) 25

Hint:

Mean = \(\frac { 10+20+30+40 }{ 4 } \) = \(\frac { 100 }{ 4 } \) = 25.

Question 8.

The range of the weights (in kg) of a students of a class given below is:

49, 60, 47, 50, 47, 59, 58, 45, 53

(a) 10

(b) 15

(c) 20

(d) 2

## Answer

Answer: (b) 15

Hint:

Range = 60 – 45 = 15.

Question 9.

The marks of 11 students of a class are as given below:

78, 11, 99, 63, 94, 6, 78, 36, 30, 55, 22

The range of marks is

(a) 90

(b) 91

(c) 92

(d) 93

## Answer

Answer: (d) 93

Hint:

Range = 99 – 6 = 93.

Question 10.

On which day is the number of tourists minimum?

(a) Friday

(b) Monday

(c) Thursday

(d) Saturday

## Answer

Answer: (a) Friday

Hint:

Friday ? 60.

Question 11.

The rainfall (in mm) in a city on 7 days of a certain week was recorded as follows:

On how many days was the rainfall less than 6 mm?

(a) 0

(b) 3

(c) 6

(d) 7

## Answer

Answer: (d) 7

Hint:

On each day,rainfall < 6 mm.

Question 12.

Which of the following statements is true?

(a) The mode is always one of the numbers in a data

(b) The mean is always one of the numbers in a data

(c) Mean < Mode in a data

(d) Median < Mode in a data

## Answer

Answer: (a) The mode is always one of the numbers in a data

Question 13.

The marks of some students are as given below:

30, 31, 32, 32, 33, 32, 34, 35, 30, 31, 33, 32

Find the mode of their marks.

(a) 30

(b) 31

(c) 32

(d) 33

## Answer

Answer: (c) 32

Hint:

32 occurs maximum number (4) times.

Question 14.

The median of the distribution 2, 3, 4, 7, 5, 1, 6 is

(a) 1

(b) 2

(c) 3

(d) 4

## Answer

Answer: (d) 4

Hint:

1, 2, 3, 4, 5, 6, 7.

Question 15.

The median of the data 20, 30, 40, 10, 15, 25, 35 is

(a) 20

(b) 25

(c) 30

(d) 40

## Answer

Answer: (b) 25

Hint:

10, 15, 20, 25, 30, 35, 40.

Question 16.

The mode of the distribution 3,5, 7, 4, 2, 1, 4, 3, 4 is

(a) 7

(b) 4

(c) 3

(d) 1

## Answer

Answer: (b) 4

Hint:

4 occurs maximum number (3) times.

Question 17.

A die is thrown. What is the probability of getting 6?

(a) 0

(b) \(\frac { 1 }{ 6 } \)

(c) \(\frac { 1 }{ 2 } \)

(d) 1

## Answer

Answer: (b) \(\frac { 1 }{ 6 } \)

Hint:

A die has six faces.

Question 18.

A coin is tossed. What is the probability of getting head?

(a) 0

(b) 1

(c) \(\frac { 1 }{ 2 } \)

(d) 2

## Answer

Answer: (c) \(\frac { 1 }{ 2 } \)

Hint:

A coin has two faces.

Question 19.

A die is thrown. What is the probability of getting 1?

(a) 0

(b) 1

(c) \(\frac { 1 }{ 2 } \)

(d) \(\frac { 1 }{ 6 } \)

## Answer

Answer: (d) \(\frac { 1 }{ 6 } \)

Hint:

A die has six faces.

Question 20.

A coin is tossed. What is the probability of getting tail?

(a) 1

(b) \(\frac { 1 }{ 2 } \)

(c) 2

(d) 0

## Answer

Answer: (b) \(\frac { 1 }{ 2 } \)

Hint:

A coin has two faces.

Read the following bar graph and answer the following related questions :

Question 21.

Who has got 400 marks?

(a) Vimla

(b) Saroj

(c) Indu

(d) Apala

## Answer

Answer: (a) vimla

Hint:

400 ? Vimla.

Question 22.

Who got the minimum marks?

(a) Apala

(b) Meenu

(c) Vimla

(d) Indu

## Answer

Answer: (b) Meenu

Hint:

Meenu ? 100.

Question 23.

The difference between maximum and minimum marks is

(a) 100

(d) 200

(c) 400

(d) 500

## Answer

Answer: (d) 500

Hint:

600 – 100 = 500.

Question 24.

The ratio between the marks obtained by Saroj and Vimla is

(a) 1 : 2

(b) 2 : 3

(c) 3 : 4

(d) 1 : 6

## Answer

Answer: (a) 1 : 2

Hint:

200 : 400 = 1 : 2.

Question 25.

How many girls have got marks more than 100?

(a) 2

(b) 3

(c) 4

(d) 1

## Answer

Answer: (c) 4

Hint:

200, 300, 400, 500 ? 4.

Question 26.

Who got the maximum marks?

(a) Apala

(b) Meenu

(c) Saroj

(d) Indu

## Answer

Answer: (a) Apala

Hint:

Apala ? 600.

Question 27.

The difference between the marks obtained by Vimla and Saroj is how many times the difference between the marks obtained by Meenu and Saroj?

(a) 2

(b) 3

(c) 4

(d) 6

## Answer

Answer: (a) 2

Hint:

400 – 200 = 200; 200 – 100 = 100; 200 = 2 x 100.

Question 28.

How many girls have got marks less than 600?

(a) 1

(b) 2

(c) 3

(d) 4

## Answer

Answer: (d) 4

Hint:

100, 200, 300, 400 ? 4.

Sale of Mathematics and English books in the year 2005, 2006, 2007 and 2008 are given below :

Answer the following related questions :

Question 29.

The rise in the sale of Mathematics books from 2005 to 2008 is

(a) 100

(b) 200

(c) 300

(d) 400

## Answer

Answer: (c) 300

Hint:

500 – 200 = 300.

Question 30.

In which year is the difference in the sale maximum?

(a)2005

(b) 2006

(c) 2007

(d) 2008

## Answer

Answer: (c) 2007

Hint:

400 – 200 = 200.

Question 31.

The ratio of sales in the year 2005 is

(a) 2 : 1

(b) 3 : 1

(c) 4 : 1

(d) 2 : 3

## Answer

Answer: (a) 2 : 1

Hint:

200 : 100 = 2 : 1.

Question 32.

In which year is the difference in the sale minimum?

(a) 2008

(b) 2007

(c) 2006

(d) 2005

## Answer

Answer: (a) 2008

Hint:

2008 ? 500 – 500 = 0.

Question 33.

The fall in the sale of English books from 2006 to 2007 is

(a) 50

(b) 100

(c) 150

(d) 200

## Answer

Answer: (a) 50

Hint:

250 – 200 = 50.

Number of children in six different classes are given below :

Answer the following related questions.

Question 34.

In how many classes is the number of children more than 100?

(a) 6

(b) 4

(c) 3

(d) 1

## Answer

Answer: (a) 6

Hint:

In each class, number of students > 100.

Question 35.

In which class is the number of children minimum?

(a) 8

(b) 9

(c) 10

(d) 11

## Answer

Answer: (d) 11

Hint:

11 ? 200.

Question 36.

The difference between the maximum and minimum number of children is

(a) 100

(b) 200

(c) 300

(d) 400

## Answer

Answer: (b) 200

Hint:

400 – 200 = 200.

Question 37.

In how many classes is the number of children less than 500?

(a) 2

(b) 4

(c) 5

(d) 6

## Answer

Answer: (d) 6

Hint:

In each class, number of students < 500.

Question 38.

The ratio of the number of children of class 6 and 11 is

(a) 3 : 1

(b) 2 : 1

(c) 2 : 3

(d) 1 : 4

## Answer

Answer: (b) 2 : 1

Hint:

400 : 200 = 2 : 1.

Question 39.

The total number of children is

(a) 1775

(b) 1675

(c) 1575

(d) 1785

## Answer

Answer: (a) 1775

Hint:

400 + 350 + 320 + 280 + 225 + 200 = 1775.

Question 40.

In which class is the number of children maximum?

(a) 6

(b) 7

(c) 8

(d) 9

## Answer

Answer: (a) 6

Hint:

6 ? 400.

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