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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