Constructing And Interpreting Bar Graphs
Class 8th Mathematics RS Aggarwal Solution
- The marks of a student in different subjects are given below: Subject English…
- The following table shows the year-wise strength of a school. Year 2010-11…
- The following table shows the favorite sports of 300 students of a school.…
- The air distances of four cities from Delhi (in km) are given below: City…
- The following table shows the life expectancy (average age to which people…
- Various modes of transport used by 2150 students of a school are given below:…
- The following table shows the number of motorcycles produced by a company…
- The present population (in lakhs) of six Indian states is given below: Sate…
- There are 1120 creatures in zoo as per list given below : Beast animals Other…
- The following table shows the export earnings of India (in thousand crore…
- The following data shows India’s total population (in millions) from 1961 to…
- In a survey of 100 families of a village, the number of members in each family…
- Look at the bar graph given below: Read the above bar graph carefully and…
- Given below is a bar graph showing the heights of five mountain peaks. Read…
Exercise 22
Question 1.The marks of a student in different subjects are given below:
Draw a bar graph from the above information.
Answer:
Question 2.
The following table shows the year-wise strength of a school.
Represent the above data by a bar graph.
Answer:
Question 3.
The following table shows the favorite sports of 300 students of a school.
Represent the above data by a bar graph.
Answer:
Question 4.
The air distances of four cities from Delhi (in km) are given below:
Draw a bar graph to represent the above data.
Answer:
Question 5.
The following table shows the life expectancy (average age to which people live) in various countries in a particular year.
Represent the above data by a bar graph.
Answer:
Question 6.
Various modes of transport used by 2150 students of a school are given below:
Draw a bar graph to represent the above data.
Answer:
Question 7.
The following table shows the number of motorcycles produced by a company during six consecutive years.
Draw a bar graph to represent the above data.
Answer:
Question 8.
The present population (in lakhs) of six Indian states is given below:
Represent the above data by a bar graph.
Answer:
Question 9.
There are 1120 creatures in zoo as per list given below :
Represent the above data by a bar graph.
Answer:
Question 10.
The following table shows the export earnings of India (in thousand crore rupees) during five consecutive years.
Represent the above data by a bar graph.
Answer:
Question 11.
The following data shows India’s total population (in millions) from 1961 to 2011.
Represent the above data by a bar graph.
Answer:
Question 12.
In a survey of 100 families of a village, the number of members in each family was recorded, as shown by the bar graph given below:
Read the bar graph carefully and answer the following questions.
(i) What does the bar graph show?
(ii) How many families have less than five members?
(iii) How many families have more than three members?
(iv) How many families have two children?
Or
(iv)How many families have two members?
Answer:
(i) The bar graph shows the number of members in each of the 100 families of a village.
(ii) 90
No. of Families less than five members
= 5 + 30 + 55
= 90
(iii) 65
No. of families having more than three members
= 55 + 10
= 65
(iv) 5
No. of Families having two members
= 5
Question 13.
Look at the bar graph given below:
Read the above bar graph carefully and answer the questions given below.
(i) What does the bar graph show?
(ii) In which subject is the student very poor?
(iii) If maximum marks in each subject be 100, what is the average of his marks?
(iv) On the basis of marks obtained, find the subject in which the student has special interest.
Answer:
(i) The given bar graph shows the marks obtained by a student in an examination in each of the five subjects.
This bar graph shows the marks obtained by student in five subjects.
(ii) English
English, because he has scored the less mark in English as compared to other subjects.
(iii) 54
Average Marks is
= 
= 265/5
= 53
(iv) mathematics
Student is interested in Mathematics. He has scored the maximum marks in mathematics i.e. 80.
Question 14.
Given below is a bar graph showing the heights of five mountain peaks.
Read the bar graph carefully and answer the following questions.
(i) Name the highest peak and mention its height.
(ii) What is the ratio between the heights of the lowest and the highest peaks?
(iii) Arrange the heights of the given peaks in an ascending order.
(iv) Which peaks differ in height by 600 metres?
Answer:
(i) Mount Everest, 8800 m
Mount Everest is the highest peak and its height is 8800 meters.
(ii) 15 : 22
Annapurna is the lowest peak and its height is 6000 meters.
Mount Everest is the highest peak and its height is 8800 meters.
Ratio between them is
= 6000: 8800
= 15: 22
(iii) 6000 m < 7500 m < 8000 m < 8200 m < 8800 m
Heights of given peaks in ascending order will be as follows:
6000 meters < 7500 meters < 8000 meters < 8200 meters < 8800 meters
(iv) Mount Everest and Kanchenjunga
Mount Everest is the highest peak and its height is 8800 meters.
Kanchenjunga is second highest peak and its height is 8200 meters.
These two peaks differ in height by 600 meters.