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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?

Solution:

A circle graph or Pie chart shows the relationship between a whole and its parts.

(i) Since classical consists of 10% from the given figure, therefore 10% represents 20 people.

Thus,100% represents = 100 × 20/10 = 200 people

Hence, 200 young people were surveyed.

(ii) From the pie chart, it can be easily observed that the light music represents the maximum part of the pie chart (i.e. 40%).

Hence, Light music is liked by the maximum number of people.

(iii) Number of CD’s of classical music = 10% of 1000 = 10 × 1000 / 100 = 100

Number of CD’s of semi-classical music = 20% of 1000 = 20 × 1000 / 100 = 200

Number of CD’s of light music = 40% of 1000 = 40 × 1000 / 100 = 400

Number of CD’s of folk music = 30% of 1000 = 30 × 1000 / 100 = 300

☛ Check: NCERT Solutions for Class 8 Maths Chapter 5

Video Solution:

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?

NCERT Solutions for Class 8 Maths Chapter 5 Exercise 5.2 Question 1

Summary:

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. (i) If 20 people liked classical music, 200 young people were surveyed (ii) Light music is liked by the maximum number of people (iii) If a cassette company were to make 1000 CD’s, 100 CD's of classical, 200 CD's of semi-classical, 400 CD's of light music and 300 CD's of folk music were made.

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