English

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

Advertisements
Advertisements

Question

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.
Graph
Advertisements

Solution

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

shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Data Handling - Exercise [Page 93]

APPEARS IN

NCERT Exemplar Mathematics [English] Class 7
Chapter 3 Data Handling
Exercise | Q 91. | Page 93

RELATED QUESTIONS

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.

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 graph given below gives the actual and expected sales of cars of a company for 6 months. Study the graph and answer the questions that follow.

  1. In which month was the actual sales same as the expected sales?
  2. For which month(s) was (were) the difference in actual and expected sales the maximum?
  3. For which month(s) was (were) the difference in actual and expected sales the least?
  4. What was the total sales of cars in the months–Jan, Feb. and March?
  5. What is the average sales of cars in the last three months?
  6. Find the ratio of sales in the first three months to the last three months

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


Read the bar graph given below and answer the following questions:

Scale: 1 unit = 50 students

  1. What information is given by the bar graph?
  2. In which year is the number of students maximum?
  3. In which year is the number of students twice as that of 2001 – 02?
  4. In which year did the number of students decrease as compared to previous year?
  5. In which year is the increase in number of students maximum as compared to the previous year?

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.


Observe the given bar graph carefully and answer the questions that follow.

  1. What information does the bar graph depict?
  2. How many motor bikes were produced in the first three months?
  3. Calculate the increase in production in May over the production in January.
  4. In which month the production was minimum and what was it?
  5. Calculate the average (mean) production of bikes in 6 months.

The bar graph given below represents the circulation of newspapers (dailies) in a town in six languages (the figures are approximated to hundreds).

Study the bar graph and answer the following questions:

  1. Find the total number of newspapers read in Hindi, Punjabi, Urdu, Marathi and Tamil.
  2. Find the excess number of newspapers read in Hindi than those in English.
  3. Name the language in which the least number of newspapers are read.
  4. Write the total circulation of newspapers in the town.

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?

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×