Math, asked by gyanaprakashlenka45, 2 days ago

In a survey , 200 students were asked what infuenced them most to buy their latest CD.The results are. Radio 9/20, Friends 3/20, Saw in shop 1/10, Music vedeo channel 2/25, Live performance 7/100, Other 3/20.

How many less students were influenced by live performance than by a music vedeo channel.
A. 14
B. 16
C. 2
D. 30

How many more students were infuenced by radio than by a friend.

A. 30

B. 90

C. 60

D. 120


How many students said radio influenced them most ?
A. 45
B. 90
C. 9/20
D. 180

Answers

Answered by Anonymous
0

Answer:

Given:

Number of students = 200

Formula Used\Theory:

Multiplying of ratio of each part and total value gives out

Value of each part

(a) The number of students influenced by radio is =

Ratio × total number of students

=  × 200

= 9 × 10

= 90students

(b) Number of students influence more by radio than music video channel

= difference of ratio × number of students

= () × 200

= () × 200

=  

= 37 × 2

= 74 students

(c) Number of students influence by friends and relatives

= Ratio × total number of students

=  × 200

= 3 × 10

= 30

Number of students heard CD in a shop = Ratio × total number of students

=  × 200

= 20 students

Step-by-step explanation:

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