Question

1. In a survey of 200 students, 30 liked neither to sing a song nor to dance, 60 liked to sing a song
only and 50 liked to dance only then:
i) Illustrate these information in a Venn-diagram.
ii) Find the total number of students who can sing a song

Answer 1

Answer:

Step-by-step explanation:

Let the number of students in the class be ‘x’, who like both music and dancing

(45-x)+x+(50-x)+5=60

100-x=60

X==40

Answer 2

Answer:

120

Step-by-step explanation:

no of students who liked to sing only=60

no of students who liked to dance only=50

no of student who liked to neither sing nor dance=30

therefore 200-30=170 students are interested to sing or dance

170-(60+50)=60 are interested in both singing and dancing

therefore no students who can sing=no students who can only sing +no students who can sing as well as dance=60+60=120

venn diagram can be drawn as per the above date

mark as brainliest if it deserves.