Question

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?

Answer 1

(i) 10% represents 100 people.

Therefore 20% represents = 100 x 20/10 = 200 pepole

Hence, 200 people were surveyed.

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

(iii) CD’s of classical music = 10 x 1000/100 = 100

CD’s of semi-classical music = 20 x 1000/100 = 100

CD’s of light music = 40 x 1000/100 = 400

CD’s of folk music = 30 x 1000/100 = 300