A survey was made to find the type of music that a certain group of young people liked in a city.
An 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 CDs, how many of each type would they
make?
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(i) 10% represents 100 people.
⟹20% represents = (100×20)/10 = 200
∴ 200 people were surveyed.
(ii) Since 40% of the total people surveyed liked light music and no other form of song was liked more than that, we can conclude that light music is liked by the maximum number of people.
(iii) CDs of classical music = (10 × 1000)/100 = 100
CDs of semi-classical music = (20 × 1000)/100 = 200
CDs of light music = (40 × 1000)/100 = 400
CDs of folk music = (30 × 1000)/100 = 300
