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Use the bar graph (see the given figure) to answer the following question. How many students have dog as a pet? - Mathematics

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प्रश्न

Use the bar graph (see the given figure) to answer the following question.

How many students have dog as a pet?

एका वाक्यात उत्तर
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उत्तर

The number of students having dog as a pet is 8.

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पाठ 3: Data Handling - EXERCISE 3.3 [पृष्ठ ५७]

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एनसीईआरटी Mathematics [English] Class 7
पाठ 3 Data Handling
EXERCISE 3.3 | Q 1. (b) | पृष्ठ ५७

संबंधित प्रश्‍न

Number of children in six different classes are given below. Represent the data on a bar graph.

Class Fifth Sixth Seventh Eighth Ninth Tenth
Number of children 135 120 95 100 90 80
  1. How would you choose a scale?
  2. Answer the following questions:
    1. Which class has the maximum number of children? And the minimum?
    2. Find the ratio of students of class sixth to the students of class eight.

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?

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:

  1. Which city has the largest difference in the minimum and maximum temperature on the given date?
  2. Which is the hottest city and which is the coldest city?
  3. Name two cities where maximum temperature of one was less than the minimum temperature of the other.
  4. Name the city which has the least difference between its minimum and the maximum temperature.

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?


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

In a bar graph, ______ can be drawn horizontally or vertically.


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 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 given below and answer the questions that follow:

  1. What information is compared in the above given double bar graph?
  2. Calculate the ratio of minimum temperatures in the year 2008 to the year 2009 for the month of November.
  3. For how many months was the minimum temperature in the year 2008 greater than that of year 2009? Name those months.
  4. Find the average minimum temperature for the year 2008 for the four months.
  5. In which month is the variation in the two temperatures maximum?

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

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