मराठी

Use the bar graph (see the given figure) to answer the following question. Which is the most popular pet?

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प्रश्न

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

Which is the most popular pet?

एका वाक्यात उत्तर
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उत्तर

Since the bar representing the number of students for cats is the tallest, cat is the most popular pet.

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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. (a) | पृष्ठ ५७

संबंधित प्रश्‍न

In the table given below, the information is given about roads. Using this draw a sub-divided and percentage bar diagram (Approximate the percentages to the nearest integer).

Year    Permanent Roads 
      ( Lakh km.)
  Temporary Roads 
      ( Lakh km.)
2000-2001 14 10
2001-2002 15 11
2002-2003 17 13
2003-2004 20 19

The graph shows the maximum temperatures recorded for two consecutive weeks of a town. Study the graph and answer the questions that follow.

  1. What information is given by the two axes?
  2. In which week was the temperature higher on most of the days?
  3. On which day was the temperature same in both the weeks?
  4. On which day was the difference in temperatures the maximum for both the weeks?
  5. What were the temperatures for both the weeks on Thursday?
  6. On which day was the temperature 35°C for the first week?
  7. On which day was the temperature highest for the second week?

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


To represent the population of different towns using bar graph, it is convenient to take one unit length to represent one person.


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?

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

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?

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?

The marks out of 100 obtained by Kunal and Soni in the Half Yearly Examination are given below:

Subjects English Hindi Maths Science S. Science Sanskirt
Kunal 72 81 92 96 64 85
Soni 86 89 90 82 75 82
  1. Draw a double bar graph by choosing appropriate scale.
  2. Calculate the total percentage of marks obtained by Soni.
  3. Calculate the total percentage of marks obtained by Kunal.
  4. Compare the percentages of marks obtained by Kunal and Soni.
  5. In how many subjects did Soni get more marks than Kunal? Which are those subjects?
  6. Who got more marks in S. Science and what was the difference of marks?
  7. In which subject the difference of marks was maximum and by how much?

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