मराठी

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

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प्रश्न

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:

  1. Draw a double bar graph using appropriate scale to represent the above information.
  2. Which flavour is liked the most by the boys?
  3. How many girls are there in all?
  4. How many children like chocolate flavour of ice cream?
  5. Find the ratio of children who like strawberry flavour to vanilla flavour of ice cream.
आलेख
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उत्तर

a. Bar graph of the given data is:


b. On observing the bar graph, we can say that boys like butterscotch the most because the bar for butterscotch in case of boys is of highest length, i.e. 13.

c. Total number of girls = Sum of heights of bars corresponding to girls

= 8 + 12 + 7 + 9 + 10

= 46

d. Number of children who like chocolate flavour = Sum of heights of bars for both boys and girls corresponding to chocolate

= 9 + 12

= 21

e. Total number of children who like strawberry = 3 + 7 = 10

Total number of children who like vanilla = 4 + 8 = 12

∴ Ratio of children who like strawberry flavour to vanilla flavour of ice-cream

= 10 : 12

= 5 : 6

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पाठ 3: Data Handling - Exercise [पृष्ठ ९३]

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एनसीईआरटी एक्झांप्लर Mathematics Exemplar Class 7
पाठ 3 Data Handling
Exercise | Q 91. | पृष्ठ ९३

संबंधित प्रश्‍न

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.

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

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 47 9
2007-2008 56 13
2008-2009 60 16
2009-2010 63 18

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.

Crop Area of land
(in million hectares)
Rice 50
Wheat 30
Pulses 20
Sugarcane 25
Cotton 15

Prepare a bar graph of the data.


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?

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

  1. What information does the double bar graph represent?
  2. Find the total number of boys in all sections of Class VII.
  3. In which sections, the number of girls is greater than the number of boys?
  4. In which section, the number of boys is the maximum?
  5. In which section, the number of girls is the least?

Observe the following data:

Government School, Chandpur
Daily Attendance   Date: 15.4.2009
Class Total Students Number of Students
Present on that Day
VI 90 81
VII 82 76
VIII 95 91
IX 70 65
X 63 62
  1. Draw a double bar graph choosing an appropriate scale. What do you infer from the bar graph?
  2. Which class has the maximum number of students?
  3. In which class, the difference of total students and number of students present is minimum?
  4. Find the ratio of number of students present to the total number of students of Class IX.
  5. What per cent of Class VI students were absent?

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?

The data given below shows the production of motorbikes in a factory for some months of two consecutive years.

Months Feb May August October December
2008 2700 3200 6000 5000 4200
2007 2800 4500 4800 4800 5200

Study the table given above and answer the following questions:

  1. Draw a double bar graph using appropriate scale to depict the above information and compare them.
  2. In which year was the total output the maximum?
  3. Find the mean production for the year 2007.
  4. For which month was the difference between the production for the two years the maximum?
  5. In which month for the year 2008, the production was the maximum?
  6. In which month for the year 2007, the production was the least?

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