## NCERT Solutions for Class 8 Chapter 5 Data Handling -Free PDF Download

Free PDF download of NCERT Solutions Maths Class 8 Solutions Chapter 5 – Data Handling solved by Expert Maths Teachers on CoolGyan.Org. All Chapter 5 – Data Handling Questions with Solutions for NCERT to help you to revise complete Syllabus and Score More marks.

Maths Revision Notes for Class 8

Chapter Name | Data Handling |

Chapter | Chapter 5 |

Exercise | Exercise 5.2 |

Class | Class 8 |

Subject | Maths NCERT Solutions |

Board | CBSE |

TEXTBOOK | CBSE NCERT |

Category | NCERT Solutions |

**NCERT SOLVED**

**1. A survey was made to find the type of music that a certain group of young people liked in a city. Adjoining pie chart shows the findings of this survey.**

**From this pie chart, answer the following:**

**(i) If 20 people liked classical music, how many young people were surveyed? (ii) Which type of music is liked by the maximum number of people? (iii) If a cassette company were to make 1000 CD’s, how many of each type would they make?**

**Ans. (i)** 10% represents 20 people.

Therefore 100% represents =

= 200 people

Hence, 200 people were surveyed.

**(ii)** Light music is liked by the maximum number of people.

**(iii)** CD’s of classical music =

= 100

CD’s of semi-classical music = = 200

CD’s of light music = = 400

CD’s of folk music = = 300

**2. A group of 360 people were asked to vote for their favourite season from the three seasons rainy, winter and summer.**

**(i) Which season got the most votes? (ii) Find the central angle of each sector. (iii) Draw a pie chart to show this information. **

**Ans. (i)** Winter season got the most votes.

**(ii)** Central angle of summer season =

Central angle of rainy season =

Central angle of winter season =

**(iii)**

**3. Draw a pie chart showing the following information. The table shows the colours preferred by a group of people.**

**Ans. **Here, central angle = 360**°** and total number of people = 36

**4. The adjoining pie chart gives the marks scored in an examination by a student in Hindi, English, Mathematics, Social Science and Science. If the total marks obtained by the students were 540, answer the following questions:**

**(i) In which subject did the student score 105 marks?**

**(Hint: for 540 marks, the central angle = 360****°. ****So, for 105 marks, what is the central angle?)**

**(ii) How many more marks were obtained by the student in Mathematics than in Hindi?**

**(iii) Examine whether the sum of the marks obtained in Social Science and Mathematics is more than that in Science and Hindi.**

**(Hint: Just study the central angles)**

**Ans.**

**(i)** The student scored 105 marks in Hindi.

**(ii)** Marks obtained in Mathematics = 135

Marks obtained in Hindi = 105

Difference = 135 – 105 = 30

Thus, 30 more marks were obtained by the student in Mathematics than in Hindi.

**(iii)** The sum of marks in Social Science and Mathematics = 97.5 + 135 = 232.5

The sum of marks in Science and Hindi = 120 + 105 = 225

Yes, the sum of the marks in Social Science and Mathematics is more than that in Science and Hindi.

**5. The number of students in a hostel, speaking different languages is given below.**

**Display the data in a pie chart.**

**Ans. **

Pie chart at above given data is as follows.