I do not understand the first three questions. Can you explain me?
In this question, It has been given that,
Total No. of people = 88
55 people liked Future 1
16 people liked Future 2
43 people liked Future 3
13 people liked 1 & 2
7 people liked 2 & 3
16 people liked 1 & 3
Based on this information we have to find answers of few questions.
After the calculation we made venn diagram, shown below,
How many people didn’t like any film?
Based on the above Venn diagram, we can see that 5 people didn’t like any Films,
No. of people any at-least one film = 25 + 31 + 1 + 11 + 8 + 2 + 5 = 83,
Total no. of people being surveyed = 88,
Therefore no. of people who didn’t like any film = 88 – 83 = 5,
There are 5 people out of 88 who didn’t like any film.
How many people like only one film?
No. of people who liked only one film is equal to;
= 31 + 25 + 1
How many people liked I or III?
(I or III) = (I) + (III) – (I AND III)
(I or III) = 55 + 43 – 16
(I or III) = 82
How many liked...
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