Question

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
C
of this survey.
From this pie chart answer the following:
(1) If 20 people liked classical music, how
many young people were surveyed?
(i) 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

Answer:

Q1When 10 people liked classical music, number of people surveyed is 100

So, When 1 person liked the classical music, number of people surveyed is

100

10

When 20 people like the classical music, number of people surveyed

=100/10*20=200.

Q2Light music is liked by maximum number of people

Q3Number of CD’s for different music

•Semi Classical

Semi Classical =1000*20%=200

•CLASSICAL=1000*10%=100

•FOLK=1000*30%=300

•LIGHT=1000*40%=400

Answer 2

$\huge\underbrace\mathcal\red{Answer}$

i) let the people surveyed = x

Classical music = 10% of x

10% of x. = 20

10 × x / 100 = 20

x. = 2000/10

x = 200

ii) light

iii) Total CD's 1000

Light = 40% of 1000

= 40 × 1000 / 100

= 400

Folk = 30% of 1000 = 300

Semi Classical. = 200

Classical. = 100