मराठी

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 - Mathematics

Advertisements
Advertisements

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.
थोडक्यात उत्तर
आलेख

उत्तर

a. We will choose a scale as 1 unit = 10 children because we can represent a more clear difference between the number of students of class 7th and that of class 9th by this scale.

b. i. Since the bar representing the number of children for class fifth is the tallest, there are maximum number of children in class fifth. Similarly, since the bar representing the number of children for class tenth is the smallest, there are minimum number of children in class tenth.

ii. The number of students in class sixth is 120 and the number of students in class eight is 100. Therefore, the ratio between the number of students of class sixth and the number of students of class eight

= `120/100`

= `6/5`

= 6 : 5

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Data Handling - Exercise 3.3 [पृष्ठ ७३]

APPEARS IN

एनसीईआरटी Mathematics [English] Class 7
पाठ 3 Data Handling
Exercise 3.3 | Q 3 | पृष्ठ ७३

संबंधित प्रश्‍न

Bar diagram of first term scores of a student are given.

a. The highest score is in _________.

b. The lowest score is in _________.

c. The same scores are in _________ and _________.


Comparison of parts of a whole may be done by a ______.


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

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


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


The bar graph given below represents the circulation of newspapers in different languages in a town. Study the bar graph and answer the following questions:

Scale: 1 unit length = 200 Newspapers

(a) What is the circulation of English newspaper?
(b) Name the two languages in which circulation of newspaper is the same.
(c) By how much is the circulation of newspaper in Hindi more than the newspaper in Bengali?


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?

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 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?

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.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×