#### Chapters

Chapter 2: Powers

Chapter 3: Squares and Square Roots

Chapter 4: Cubes and Cube Roots

Chapter 5: Playing with Numbers

Chapter 6: Algebraic Expressions and Identities

Chapter 7: Factorization

Chapter 8: Division of Algebraic Expressions

Chapter 9: Linear Equation in One Variable

Chapter 10: Direct and Inverse Variations

Chapter 11: Time and Work

Chapter 12: Percentage

Chapter 13: Proft, Loss, Discount and Value Added Tax (VAT)

Chapter 14: Compound Interest

Chapter 15: Understanding Shapes-I (Polygons)

Chapter 16: Understanding Shapes-II (Quadrilaterals)

Chapter 17: Understanding Shapes-III (Special Types of Quadrilaterals)

Chapter 18: Practical Geometry (Constructions)

Chapter 19: Visualising Shapes

Chapter 20: Mensuration - I (Area of a Trapezium and a Polygon)

Chapter 21: Mensuration - II (Volumes and Surface Areas of a Cuboid and a Cube)

Chapter 22: Mensuration - III (Surface Area and Volume of a Right Circular Cylinder)

Chapter 23: Data Handling-I (Classification and Tabulation of Data)

Chapter 24: Data Handling-II (Graphical Representation of Data as Histograms)

Chapter 25: Data Handling-III (Pictorial Representation of Data as Pie Charts or Circle Graphs)

Chapter 26: Data Handling-IV (Probability)

Chapter 27: Introduction to Graphs

#### RD Sharma Mathematics Class 8 by R D Sharma (2019-2020 Session)

## Chapter 25: Data Handling-III (Pictorial Representation of Data as Pie Charts or Circle Graphs)

#### Chapter 25: Data Handling-III (Pictorial Representation of Data as Pie Charts or Circle Graphs) Exercise 25.10 solutions [Pages 12 - 14]

The number of hours, spent by a school boy on different activities in a working day, is given below:

Activities | Sleep | School | Home | Play | Others | Total |

Number of hours | 8 | 7 | 4 | 2 | 3 | 24 |

Present the information in the form of a pie-chart.

Employees of a company have been categorized according to their religions as given below:

Religions | Hindu | Muslim | Sikh | Christian | Total |

Number of workers | 420 | 300 | 225 | 105 | 1080 |

Draw a pie-chart to represent the above information.

In one day the sales (in rupees) of different items of a baker's shop are given below:

Items | Ordinary bread | Fruit bread | Cakes and Pastries | Biscuits | Others | Total |

Sales (in Rs) | 260 | 40 | 100 | 60 | 20 | 480 |

Draw a pie-chart representing the above sales.

The following data shows the expenditure of a person on different items during a month. Represent the data by a pie-chart.

Items of expenditure | Rent | Education | Food | Clothing | Others |

Amount (in Rs) | 2700 | 1800 | 2400 | 1500 | 2400 |

The percentages of various categories of workers in a state are given in the following table.

Categoies | Culti-vators | Agricultural Labourers | Industrial Workers | Commercial Workers | Others |

% of workers | 40 | 25 | 12.5 | 10 | 12.5 |

Present the information in the form a pie-chart.

The following table shows the expenditure incurred by a publisher in publishing a book:

Items | Paper | Printing | Binding | Advertising | Miscellaneous |

Expenditure (in%) | 35% | 20% | 10% | 5% | 30% |

Present the above data in the form of a pie-chart.

Percentage of the different products of a village in a particular district are given below. Draw a pie-chart representing this information.

Items | Wheat | Pulses | Jwar | Grounnuts | Vegetables | Total |

% | `125/3` | `125/6` | `25/2` | `50/3` | `25/3` | 100 |

Draw a pie-diagram for the following data of expenditure pattern in a family:

Items | Food | Clothing | Rent | Education | Unforeseen events | Midicine |

Expenditure (in percent) | 40% | 20% | 10% | 10% | 15% | 5% |

Draw a pie-diagram of the areas of continents of the world given in the following table:

Continents | Asia | U.S.S.R | Africa | Europe | Noth America | South America | Australia |

Area (in million sq. km) |
26.9 | 20.5 | 30.3 | 4.9 | 24.3 | 17.9 | 8.5 |

The following data gives the amount spent on the construction of a house. Draw a pie diagram.

Items | Cement | Timber | Bricks | Labour | Steel | Miscellaneous |

Expenditure (in thousand Rs) |
60 | 30 | 45 | 75 | 45 | 45 |

The following table shows how a student spends his pocket money during the course of a month. Represent it by a pie-diagram.

Items | Food | Entertainment | Other expenditure | Savings |

Expenditure | 40% | 25% | 20% | 15% |

Represent the following data by a pie-diagram:

Items of expenditure | Expenditure | |

Family A | Family B | |

Food | 4000 | 6400 |

Clothing | 2500 | 480 |

Rent | 1500 | 3200 |

Education | 400 | 1000 |

Miscellaneous | 1600 | 600 |

Total | 10000 | 16000 |

Following data gives the break up of the cost of production of a book:

Printing | Paper | Binding charges | Advertisement | Royalty | Miscellaneous |

30% | 15% | 15% | 20% | 10% | 15% |

Draw a pie- diagram depicting the above information.

Represent the following data with the help of a pie-diagram:

Items | Wheat | Rice | Tea |

Production (in metric tons) | 3260 | 1840 | 900 |

Draw a pie-diagram representing the relative frequencies (expressed as percentage) of the eight classes as given below:

12.6, 18.2, 17.5, 20.3, 2.8, 4.2, 9.8, 14.7

Following is the break up of the expenditure of a family on different items of consumption:

Items | Food | Clothing | Rent | Education | Fuel etc. | Medicine | Miscellaneous |

Expenditure (in Rs) | 1600 | 200 | 600 | 150 | 100 | 80 | 270 |

Draw a pie-diagram to represent the above data.

Draw a pie-diagram for the following data of the investment pattern in a five year plan:

Agriculture | Irrigation and Power | Small Industries | Transport | Social service | Miscellaneous |

14% | 16% | 29% | 17% | 16% | 8% |

#### Chapter 25: Data Handling-III (Pictorial Representation of Data as Pie Charts or Circle Graphs) Exercise 25.20 solutions [Pages 21 - 23]

The pie-chart given in the following represents the expenditure on different items in constructing a flat in Delhi. If the expenditure incurred on cement is Rs 112500, find the following:

(i) Total cost of the flat.

(ii) Expenditure incurred on labour.

The pie-chart given in the following shows the annual agricultural production of an Indian state. If the total production of all the commodities is 81000 tonnes, find the production (in tonnes) of

(i) Wheat

(ii) Sugar

(iii) Rice

(iv) Maize

(v) Gram

The following pie-chart shows the number of students admitted in different faculties of a college. If 1000 students are admitted in Science answer the following:

(i) What is the total number of students?

(ii) What is the ratio of students in science and arts?

In the following figure, the pie-chart shows the marks obtained by a student in an examination. If the student secures 440 marks in all, calculate his marks in each of the given subjects.

In the following figure, the pie-chart shows the marks obtained by a student in various subjects. If the student scored 135 marks in mathematics, find the total marks in all the subjects. Also, find his score in individual subjects.

The following pie-chart shows the monthly expenditure of Shikha on various items. If she spends Rs 16000 per month, answer the following questions:

(i) How much does she spend on rent?

(ii) How much does she spend on education?

(iii) What is the ratio of expenses on food and rent?

The pie chart (as shown in the figure 25.23) represents the amount spent on different sports by a sports club in a year. If the total money spent by the club on sports is Rs 1,08,000, find the amount spent on each sport.

## Chapter 25: Data Handling-III (Pictorial Representation of Data as Pie Charts or Circle Graphs)

#### RD Sharma Mathematics Class 8 by R D Sharma (2019-2020 Session)

#### Textbook solutions for Class 8

## RD Sharma solutions for Class 8 Mathematics chapter 25 - Data Handling-III (Pictorial Representation of Data as Pie Charts or Circle Graphs)

RD Sharma solutions for Class 8 Maths chapter 25 (Data Handling-III (Pictorial Representation of Data as Pie Charts or Circle Graphs)) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CBSE Mathematics for Class 8 by R D Sharma (2019-2020 Session) solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Class 8 Mathematics chapter 25 Data Handling-III (Pictorial Representation of Data as Pie Charts or Circle Graphs) are Introduction of Grouping Data, Bars with a Difference, Introduction of Circle Graph Or Pie Chart, Circle Graph Or Pie Chart - Drawing Pie Charts, Chance and Probability - Getting a Result, Chance and Probability - Equally Likely Outcomes, Chance and Probability - Linking Chances to Probability, Chance and Probability - Outcomes as Events, Chance and Probability Related to Real Life, Organising Data, Looking for Information, Graphical Representation of Data as Histograms.

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