हिंदी

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

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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
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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.

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अध्याय 3: Data Handling - Exercise [पृष्ठ ८६]

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एनसीईआरटी एक्झांप्लर Mathematics Exemplar Class 7
अध्याय 3 Data Handling
Exercise | Q 80. | पृष्ठ ८६

संबंधित प्रश्न

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
 2005-2006

 2007-2008

 2008-2009

 2009-2010
 
      47

      56 

      60

      63
          9

         13

         16

         18

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 chart gives the growth in height in terms of percentage of full height of boys and girls with their respective ages.

Age (in years) 8 9 10 11 12 13 14 15 16 17

18

Boys 72% 75% 78% 81% 84% 88% 92% 95% 98% 99% 100%
Girls 77% 81% 84% 88% 91% 95% 98% 99% 99.5% 100% 100%

Draw the line graph of above data on the same sheet and answer the following questions.

  1. In which year both the boys and the girls achieve their maximum height?
  2. Who grows faster at puberty (14 years to 16 years of age)?

In a bar graph, bars of uniform width are drawn vertically only.


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

  1. Find the number of students whose shoe sizes have been collected.
  2. What is the number of students wearing shoe size 6?
  3. What are the different sizes of the shoes worn by the students?
  4. Which shoe size is worn by the maximum number of students?
  5. Which shoe size is worn by minimum number of students?
  6. 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

  1. How many tickets were sold in all?
  2. For which city were the maximum number of tickets sold?
  3. For which city were the minimum number of tickets sold?
  4. Name the cities for which the number of tickets sold is more than 20
  5. 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 bar graph given below represents approximate length (in kilometres) of some National Highways in India.

Study the bar graph and answer the following questions:

Scale: 1 unit length = 200 km

  1. Which National Highway (N.H.) is the longest among the above?
  2. Which National Highway is the shortest among the above?
  3. What is the length of National Highway 9?
  4. Length of which National Highway is about three times the National Highway 10?

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 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.

In a public library, the following observations were recorded by the librarian in a particular week:

Days Mon Tues Wed Thurs Fri Sat
Newspaper
Readers
400 600 350 550 500 350
Magazines
Readers
150 100 200 300 250 200
  1. Draw a double bar graph choosing an appropriate scale.
  2. On which day, the number of readers in the library was maximum?
  3. What is the mean number of magazine readers?

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