Question

In a survey it was found that 21 people liked product A, 26 liked product B and 29 liked product C if 14 people liked products A and B . 12 people liked products C and A , 14 people liked products B and C and 8 liked all these products.
​a. find how many liked at least one of the product?
b. find how many liked at least two of the product?
c.find how many liked exactly one product?
d. find how many liked exactly two product ?​

Answer 1

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Answer 2

Step-by-step explanation:

Let the people who liked product A be 'A'

Let the people who liked product B be 'B'

Let the people who liked product C be 'C'

therefore,

A= 21

B= 26

C= 29

A intersection B= 14

A intersection C= 12

B intersection C= 14

A intersection B intersection C= 8