Advertisements
Advertisements
प्रश्न
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 |
- Draw a double bar graph choosing an appropriate scale. What do you infer from the bar graph?
- Which class has the maximum number of students?
- In which class, the difference of total students and number of students present is minimum?
- Find the ratio of number of students present to the total number of students of Class IX.
- What per cent of Class VI students were absent?
Advertisements
उत्तर
a. A double bar graph is shown below:
We infer from the bar graph that maximum number of students were absent in class VI on 15.04.2009, whereas minimum number of students were absent in class X.
b. Clearly, class VIII has maximum number of students, i.e. 95.
c. The difference of total number of students and number of students present is minimum for class X i.e. 63 – 62 = 1.
d. Number of students present in class IX = 65
Total number of students in class IX = 70
Hence, required ratio = `65/70 = 13/14` or 13 : 14
e. Total number of students in class VI = 90
Number of students present in class VI = 81
Number of absent students = 90 – 81 = 9
∴ Percentage of absent students of class VI
= `("Number of absent students"/"Total number of students" xx 100)%`
= `(9/90 xx 100)%`
= 10%
APPEARS IN
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 |
In a bar graph, the gap between two consecutive bars may not be the same.
The following table gives the number of vehicles passing through a toll gate, every hour from 8.00 am. to 1.00 pm:
| Time Interval |
8.00 to 9.00 |
9.00 to 10.00 |
10.00 to 11.00 |
11.00 to 12.00 |
12.00 to 1.00 |
| Number of vehicles |
250 | 450 | 300 | 250 | 150 |
Draw a bar graph representing the above data.
Prepare a bar graph of the data given in the question.
| Surname | Number of people  = 100 people |
| Khan |  |
| Patel |  |
| Rao |  |
| Roy |  |
| Saikia |  |
| Singh |  |
Study the bar graph given below and answer the questions that follow.
- What information does the above bar graph represent?
- In which year was production the least?
- After which year was the maximum rise in the production?
- Find the average production of rice during the 5 years.
- Find difference of rice production between years 2006 and 2008.
Study the double bar graphs given below and answer the following questions:
- Which sport is liked the most by Class VIII students?
- How many students of Class VII like Hockey and Tennis in all?
- How many students are there in Class VII?
- For which sport is the number of students of Class VII less than that of Class VIII?
- For how many sports students of Class VIII are less than Class VII?
- Find the ratio of students who like Badminton in Class VII to students who like Tennis in Class VIII.
Study the double bar graph shown below and answer the questions that follow:
- What information is represented by the above double bar graph?
- In which month sales of Brand A decreased as compared to the previous month?
- What is the difference in sales of both the Brands for the month of June?
- Find the average sales of Brand B for the six months.
- List all months for which the sales of Brand B was less than that of Brand A.
- Find the ratio of sales of Brand A as compared to Brand B for the month of January.
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 |
- Draw a double bar graph using appropriate scale to depict the above data.
- How many students are there in Class VII?
- Which is the most preferred club by boys?
- Which is the least preferred club by girls?
- For which club the difference between boys and girls is the least?
- For which club is the difference between boys and girls the maximum?
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:
- Draw a double bar graph using appropriate scale to depict the above information and compare them.
- In which year was the total output the maximum?
- Find the mean production for the year 2007.
- For which month was the difference between the production for the two years the maximum?
- In which month for the year 2008, the production was the maximum?
- 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:
- Draw a double bar graph using appropriate scale to represent the above information.
- Which flavour is liked the most by the boys?
- How many girls are there in all?
- How many children like chocolate flavour of ice cream?
- Find the ratio of children who like strawberry flavour to vanilla flavour of ice cream.
