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Find out how many people were interviewed

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Reference no: EM132330925

Question - In a recent survey, a statistician reported the following data.

18 persons liked brand A.

27 persons liked brand B.

16 persons liked brand C.

12 persons liked brands A and B.

7 persons liked brands A and C.

10 persons liked brands B and C.

3 persons liked all three brands.

4 persons liked none of the three brands.

A truthful statistician was asked to find out how many people were interviewed. What was this statistician's answer?

Reference no: EM132330925

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