Advertisements
Advertisements
Question
The following table shows the number of Buses and Trucks in nearest lakh units. Draw percentage bar-diagram. (Approximate the percentages to the nearest integer)
| Year | No. of Trucks | No. of Buses |
| 2006-2007 | 47 | 9 |
| 2007-2008 | 56 | 13 |
| 2008-2009 | 60 | 16 |
| 2009-2010 | 63 | 18 |
Solution
The following table shows the number of Buses and Trucks in nearest lakh units.
| Year | No of trucks | Percentage of trucks | No of buses | Percentage of buses |
| 2006-2007 | 47 | = `47/ ( 47 + 9 )` × 100 = `4700 / 56` = 83. 92 ≈ 84 | 9 | = `9 / ( 47 + 9 )` × 100 = ` 900 / 56 ` = 16.07 ≈ 16 |
| 2007-2008 | 56 | = ` 56/ ( 56 + 13)` × 100 = ` 5600 / 69` = 81.15 ≈ 81 | 13 | = `13 / ( 56 + 13)` × 100 = `1300/69` = 18.84 ≈ 19 |
| 2008-2009 | 60 | = ` 60 / ( 60 + 16 )` × 100 = `6000 / 76` = 78.94 ≈ 79 | 16 | = ` 16 / ( 60+ 16 )` × 100 = `1600 / 76` = 21.05 ≈ 21 |
| 2009-2010 | 63 | = `63 / ( 63 + 18 )` × 100 = `6300/ 81`= 77.77 ≈ 78 | 18 | = `18 / ( 63 + 18 )` × 100 = `1800 / 81 ` = 22.22 ≈ 22 |
The percentage bar-diagram of the above table is as follows:
APPEARS IN
RELATED QUESTIONS
Take the data giving the minimum and the maximum temperature of various cities given in the following table:
| Temperatures of the cities as on 20.6.2006 | ||
| City | Max. | Min. |
| Ahmedabad | 38ºC | 29ºC |
| Amritsar | 37ºC | 26ºC |
| Banglore | 28ºC | 21ºC |
| Chennai | 36ºC | 27ºC |
| Delhi | 38ºC | 28ºC |
| Jaipur | 39ºC | 29ºC |
| Jammu | 41ºC | 26ºC |
| Mumbai | 32ºC | 27ºC |
Plot a double bar graph using the data and answer the following:
- Which city has the largest difference in the minimum and maximum temperature on the given date?
- Which is the hottest city and which is the coldest city?
- Name two cities where maximum temperature of one was less than the minimum temperature of the other.
- Name the city which has the least difference between its minimum and the maximum temperature.
Bar diagram of first term scores of a student are given.
a. The highest score is in _________.
b. The lowest score is in _________.
c. The same scores are in _________ and _________.
Try yourself
On any one day, choose any three cities and record their temperature from the TV or newspaper.
- Make a bar chart in your notebook and ask your friends a few questions about it. See if they understand your chart!
The graph shows the maximum temperatures recorded for two consecutive weeks of a town. Study the graph and answer the questions that follow.
- What information is given by the two axes?
- In which week was the temperature higher on most of the days?
- On which day was the temperature same in both the weeks?
- On which day was the difference in temperatures the maximum for both the weeks?
- What were the temperatures for both the weeks on Thursday?
- On which day was the temperature 35°C for the first week?
- On which day was the temperature highest for the second week?
In a bar graph, the gap between two consecutive bars may not be the same.
The following bar graph represents the data for different sizes of shoes worn by the students in a school. Read the graph and answer the following questions.
Scale: 1 unit length = 50 students
(a) Find the number of students whose shoe sizes have been collected.
(b) What is the number of students wearing shoe size 6?
(c) What are the different sizes of the shoes worn by the students?
(d) Which shoe size is worn by the maximum number of students?
(e) Which shoe size is worn by minimum number of students?
(f) State whether true or false:
The total number of students wearing shoe sizes 5 and 8 is the same as the number of students wearing shoe size 6.
The following graph gives the information about the number of railway tickets sold for different cities on a railway ticket counter between 6.00 am to 10.00 am. Read the bar graph and answer the following questions.
Scale: 1 unit length = 10 tickets
(a) How many tickets were sold in all?
(b) For which city were the maximum number of tickets sold?
(c) For which city were the minimum number of tickets sold?
(d) Name the cities for which the number of tickets sold is more than 20
(e) Fill in the blanks: Number of tickets sold for Delhi and Jaipur together exceeds the total number of tickets sold for Patna and Chennai by ______.
The following table gives the number of vehicles passing through a toll gate, every hour from 8.00 am. to 1.00 pm:
| Time Interval |
8.00 to 9.00 |
9.00 to 10.00 |
10.00 to 11.00 |
11.00 to 12.00 |
12.00 to 1.00 |
| Number of vehicles |
250 | 450 | 300 | 250 | 150 |
Draw a bar graph representing the above data.
Study the double bar graph and answer the questions that follow:
- What information does the double bar graph represent?
- Find the total number of boys in all sections of Class VII.
- In which sections, the number of girls is greater than the number of boys?
- In which section, the number of boys is the maximum?
- In which section, the number of girls is the least?
The table below gives the flavours of ice cream liked by children (boys and girls) of a society.
| Flavours | Vanilla | Chocolate | Strawberry | Mango | Butterscotch |
| Boys | 4 | 9 | 3 | 8 | 13 |
| Girls | 8 | 12 | 7 | 9 | 10 |
Study the table and answer the following questions:
- Draw a double bar graph using appropriate scale to represent the above information.
- Which flavour is liked the most by the boys?
- How many girls are there in all?
- How many children like chocolate flavour of ice cream?
- Find the ratio of children who like strawberry flavour to vanilla flavour of ice cream.
