Question

A survey was conducted of the T.V. Programme watched by 120 students of a school
hostel. It was learnt that 70 students watch "discovery Channel” and 56 watched
"sports channel” and 24 watched both the programmes.
(i) Find the number of students who watched T.V. on that day
(ii) Find the number of students who did not watch T.V. on that day
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Answer 1

Answer:

• Total no of students watching TV = 70+56+24 = 150 students
• Total no of students watching programme = 120
• Total no of students who were not watching the programme = 150-120 = 30