Question

A survey was conducted to know the liking of music type on the youth of a city. A pie-chart is representing the data of survey answer the following questions by observing the pie-chart.

(i) In 20 people like classical music, then how many people did participate in survey?

(ii) Which type of music were liked by maximum people?

(iii) If a cassette company make 1000 C.D.’s, then write the number of C.D.’s of each category.

Answer 1

(i) Let x persons participated in survey. Then,

10% of x = 20

x x 10/100 = 20

x = (20 x 100)/10

x = 200

(ii) Entertaining Music

(iii) No of CD’s

Classic Music = 10/100 x 1000 = 100

Sub Classic Music = 20/100 x 1000 = 200

Folk Music = 30/100 x 1000 = 300

Entertaining Music = 40/100 x 1000 = 400