मराठी

The following table shows the average intake of nutrients in calories by rural and urban groups in a particular year. Using a suitable scale for the given data - Mathematics

Advertisements
Advertisements

प्रश्न

The following table shows the average intake of nutrients in calories by rural and urban groups in a particular year. Using a suitable scale for the given data, draw a double bar graph to compare the data.

Foodstuff Rural Urban
Pulses 35 49
Leafy vegetables 14 21
Other vegetables 51 89
Fruits 35 66
Milk 70 250
Fish and flesh floods 10 22
Fats and Oils 9 35
Sugar/Jaggery 19 31
आलेख
Advertisements

उत्तर

Steps to construct the bar graphs are as follows:

Step I: Firstly, we draw two lines perpendicular to each other on a graph paper and call them horizontal and vertical axes.

Step II: Along the horizontal axis, we mark the foodstuff and along the vertical axis, we mark the intake of nutrients (calories).

Step III: We choose a suitable scale to determine the heights of bars. Here, we choose the scale as 1 small division to represent 20.

Step IV: First, we draw the bars for rural and then bars of urban for different foodstuff.

Bars for rural and urban are shaded separately and the shading is shown at the top right corner of the graph paper.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Data Handling - Exercise [पृष्ठ ८६]

APPEARS IN

एनसीईआरटी एक्झांप्लर Mathematics [English] Class 7
पाठ 3 Data Handling
Exercise | Q 80. | पृष्ठ ८६

संबंधित प्रश्‍न

Consider this data collected from a survey of a colony.

Favourite sport Cricket Basket Ball Swimming Hockey Athletics
Watching 1240 470 510 430 250
Participating 620 320 320 250 105
  1. Draw a double bar graph choosing an appropriate scale. What do you infer from the bar graph?
  2. Which sport is most popular?
  3. Which is more preferred, watching or participating in sports?

Plot the points (2, 8), (7, 8) and (12, 8). Join these points in pairs. Do they lie on a line? What do you observe?


Practice time: Afterschool

Ask 10 of your friends about what they like to do most after school.

What they like to do
after school
Number of children
Watching TV  
Playing football  
Reading storybooks  
   
   
   

The following bar graph shows the number of houses (out of 100) in a town using different types of fuels for cooking.

Read the bar graph and answer the following questions:

Scale: 1 unit length = 5 houses

  1. Which fuel is used in maximum number of houses?
  2. How many houses are using coal as fuel?
  3. Suppose that the total number of houses in the town is 1 lakh.
    From the above graph estimate the number of houses using electricity.

Number of mobile phone users in various age groups in a city is listed below:

Age group (in years) Number of mobile users
1 – 20 25000
21 – 40 40000
41 – 50 35000
61 – 80 10000

Draw a bar graph to represent the above information.


Prepare a bar graph of the data given in the question. 

Surname Number of people  = 100 people
Khan
Patel
Rao
Roy
Saikia
Singh

The bar graph given below shows the marks of students of a class in a particular subject:

Study the bar graph and answer the following questions:

  1. If 40 is the pass mark, then how many students have failed?
  2. How many students got marks from 50 to 69?
  3. How many students scored 90 marks and above?
  4. If students who scored marks above 80 are given merits then how many merit holders are there?
  5. What is the strength of the class?

Study the double bar graph shown below and answer the questions that follow:

  1. What information is represented by the above double bar graph?
  2. In which month sales of Brand A decreased as compared to the previous month?
  3. What is the difference in sales of both the Brands for the month of June?
  4. Find the average sales of Brand B for the six months.
  5. List all months for which the sales of Brand B was less than that of Brand A.
  6. Find the ratio of sales of Brand A as compared to Brand B for the month of January.

Below is a list of 10 tallest buildings in India.

This list ranks buildings in India that stand at least 150 m (492 ft.) tall, based on standard height measurement. This includes spires and architectural details but does not include antenna marks. Following data is given as per the available information till 2009. Since new buildings are always under construction, go on-line to check new taller buildings.

Use the information given in the table about sky scrapers to answer the following questions:

Name City Height Floors Year
Planet Mumbai 181 m 51 2009
UB Tower Bengaluru 184 m 20 2006
Ashok Towers Mumbai 193 m 49 2009
The Imperial I Mumbai 249 m 60 2009
The Imperial II Mumbai 249 m 60 2009
RNA Mirage Mumbai 180 m 40 2009
Oberoi Woods Tower I Mumbai 170 m 40 2009
Oberoi Woods Tower II Mumbai 170 m 40 2009
Oberoi Woods Tower III Mumbai 170 m 40 2009
MVRDC Mumbai 156 m 35 2002

(a) Find the height of each storey of the three tallest buildings and write them in the following table:

Building Height Number of storeys Height of each storey
       
       
       

(b) The average height of one storey for the buildings given in (a) is ______.

(c) Which city in this list has the largest percentage of skyscrapers? What is the percentage?

(d) What is the range of data?

(e) Find the median of the data.

(f) Draw a bar graph for given data.


The students of Class VII have to choose one club from Music, Dance, Yoga, Dramatics, Fine arts and Electronics clubs. The data given below shows the choices made by girls and boys of the class. Study the table and answer the questions that follow:

Clubs Music Dance Yoga Dramatics Fine Arts Electronics
Girls 15 24 10 19 27 21
Boys 12 16 8 17 11 30
  1. Draw a double bar graph using appropriate scale to depict the above data.
  2. How many students are there in Class VII?
  3. Which is the most preferred club by boys?
  4. Which is the least preferred club by girls?
  5. For which club the difference between boys and girls is the least?
  6. For which club is the difference between boys and girls the maximum?

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×