RS Aggarwal Solutions for Class 9 Maths Exercise 17A PDF
This is the first exercise of Chapter 17 which contains problems solved on representing the given data using bar graphs. This is one of the scoring concepts in Mathematics as the students can obtain a good score in the board exam based on its weightage. The students by understanding the concept and formulas can solve huge numbers of problems in a shorter duration. The solutions are created by subject experts with the aim of making the concepts easier for students. RS Aggarwal Solutions for Class 9 Maths Chapter 17 Bar Graph, Histogram and Frequency Polygon Exercise 17A are provided here.
RS Aggarwal Solutions for Class 9 Chapter 17: Bar Graph, Histogram and Frequency Polygon Exercise 17A Download PDF
Access RS Aggarwal Solutions for Class 9 Chapter 17: Bar Graph, Histogram and Frequency Polygon Exercise 17A
Exercise 17(A) page: 642
1. The following table shows the number of students participating in various games in a school.
Game |
Number of students |
Cricket |
27 |
Football |
36 |
Basketball |
18 |
Tennis |
12 |
Draw a bar graph to represent the above data.
Solution:
Take games on the X axis and the number of students on Y axis.
Consider 1 small square = 3 units on the Y axis
The bars should be of same width and space should be sufficient between consecutive bars.
The bar graph is as given below:
2. On a certain day, the temperature in a city was recorded as under:
Time |
Temperature in ^{o}C |
Â 5 am |
20 |
Â 8 am |
24 |
Â 11 am |
26 |
Â 3 pm |
22 |
Â 6 pm |
18 |
Illustrate the data by a bar graph.
Solution:
Take timings on the X axis and the temperatures on Y axis.
Consider 1 small square = 5 units on the Y axis
The bars should be of same width and space should be sufficient between consecutive bars.
The bar graph is as given below:
3. The approximate velocities of some vehicles are given below:
Name of vehicle |
Velocity (in km/ hr) |
Bicycle |
27 |
Â Scooter |
45 |
Â Car |
90 |
Â Bus |
72 |
Â Train |
63 |
Draw a bar graph to represent the above data.
Solution:
Take vehicles on the X axis and the velocity on Y axis.
Consider 1 small square = 10 units on the Y axis
The bars should be of same width and space should be sufficient between consecutive bars.
The bar graph is as given below:
4. The following table shows the favourite sports of 250 students of a school. Represent the data by a bar graph.
Sports |
Number of students |
Cricket |
75 |
Â Football |
35 |
Â Tennis |
50 |
Â Badminton |
25 |
Â Swimming |
65 |
Solution:
Take types of sports on the X axis and the number of students on Y axis.
Consider 1 small square = 10 units on the Y axis
The bars should be of same width and space should be sufficient between consecutive bars.
The bar graph is as given below:
5. Given below is a table which shows the year wise strength of a school. Represent this data by a bar graph.
Year |
Number of students |
2012-13 |
800 |
Â 2013-14 |
975 |
2014-15 |
1100 |
Â 2015-16 |
1400 |
Â 2016-17 |
1625 |
Solution:
Take year on the X axis and the number of students on Y axis.
Consider 1 big division = 200 units on the Y axis
The bars should be of same width and space should be sufficient between consecutive bars.
The bar graph is as given below:
6. The following table shows the number of scooters sold by a dealer during six consecutive years. Draw a bar graph to represent this data.
Year |
Number of scooters sold (in thousands) |
2011 |
16 |
Â 2012 |
20 |
2013 |
32 |
Â 2014 |
36 |
2015 |
40 |
Â 2016 |
48 |
Solution:
Take year on the X axis and the number of scooters sold on Y axis.
Consider 1 small square = 10 units on the Y axis
The bars should be of same width and space should be sufficient between consecutive bars.
The bar graph is as given below:
7. The air distances of four cities from Delhi (in km) are given below:
City |
Distance from Delhi (in km) |
Kolkata |
1340 |
Â Mumbai |
1100 |
Chennai |
1700 |
Â Hyderabad |
1220 |
Draw a bar graph to represent the above data.
Solution:
Take city on the X axis and the distance from Delhi on Y axis.
Consider 1 big division = 200 units on the Y axis
The bars should be of same width and space should be sufficient between consecutive bars.
The bar graph is as given below:
8. The birth rate per thousand in five countries over a period of time is shown below:
Country |
Birth rate per thousand |
China |
42 |
Â India |
35 |
Germany |
14 |
Â UK |
28 |
Sweden |
21 |
Represent the above data by a bar graph.
Solution:
Take countries on the X axis and the birth rate on Y axis.
Consider 1 big division = 5 units on the Y axis
The bars should be of same width and space should be sufficient between consecutive bars.
The bar graph is as given below:
9. The following table shows the life expectancy (average age to which people live in various countries in a particular year. Represent the data by a bar graph.
Country |
Life expectancy (in years) |
Japan |
84 |
Â India |
68 |
Britain |
80 |
Â Ethiopia |
64 |
Cambodia |
62 |
Â UK |
73 |
Solution:
Take country on the X axis and the life expectancy on Y axis.
Consider 1 small square = 10 units on the Y axis
The bars should be of same width and space should be sufficient between consecutive bars.
The bar graph is as given below:
10. Given below are the seats won by different political parties in the polling outcome of a state assembly elections:
Political Party |
Seats won |
A |
65 |
Â B |
52 |
C |
34 |
Â D |
28 |
E |
10 |
Â F |
31 |
Draw a bar graph to represent the polling results.
Solution:
Take political party on the X axis and the seats won on Y axis.
Consider 1 small square = 10 units on the Y axis
The bars should be of same width and space should be sufficient between consecutive bars.
The bar graph is as given below:
11. Various modes of transport used by 185 students of a school are given below:
School bus |
Private bus |
Bicycle |
Rickshaw |
By foot |
640 |
360 |
490 |
210 |
150 |
Draw a bar graph to represent the above data.
Solution:
Take mode of transport on the X axis and the number of students on Y axis.
Consider 1 big division = 100 units on the Y axis
The bars should be of same width and space should be sufficient between consecutive bars.
The bar graph is as given below:
12. Look at the bar graph given below:
Read it carefully and answer the following questions:
(i) What information does the bar graph give?
(ii) In which subject is the student very good?
(iii) In which subject is he poor?
(iv) What is the average of his marks?
Solution:
(i) The bar graph shows the marks obtained by a student in various subjects in an examination.
(ii) The student is very good in mathematics.
(iii) He is poor in Hindi.
(iv) Average marks = (60 + 35 + 75 + 50 + 60)/ 5 = 280/5 = 56.
Access other exercise solutions of Class 9 Maths Chapter 17: Bar Graph, Histogram and Frequency Polygon
Exercise 17B Solutions 16 Questions
RS Aggarwal Solutions Class 9 Maths Chapter 17 – Bar Graph, Histogram and Frequency Polygon Exercise 17A
RS Aggarwal Solutions Class 9 Maths Chapter 17 Bar Graph, Histogram and Frequency Polygon Exercise 17A explains the graphical representation of given data with the help of a bar graph.
Key features of RS Aggarwal Solutions for Class 9 Maths Chapter 17: Bar Graph, Histogram and Frequency Polygon Exercise 17A
- RS Aggarwal Solutions help students to realize their areas of weaknesses and identify the time required to improve upon them.
- By solving examples and exercise wise problems using the solutions created by our experts, students can obtain a good academic score.
- Tips and shortcuts are explained which help students to solve tricky problems faster in the exam.
- Conceptual understanding is enhanced among students, which is the main aim of preparing solutions.