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?

Answers (1)

(i)If 20 people liked classical music

Total number of people = (100\times 20)\div 10 = 200 people.

(ii)  Maximum number of people light music i.e.40 \%.

(iii) If a cassette company were to make 1000 CD’s, then

     Light music CD's = ( 40\times 1000) \div 100\:\:=400

     Folk music CD's = \left ( 30\times 1000 \right )\div 100\:\:=300

     Classical music CD's = \left ( 10\times 1000 \right )\div 100\:\:=100

     Semi classical music CD's = \left ( 20\times 1000 \right )\div 100\:\:=200

 

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