Question

In a survey of 122 consumers conducted in a shopping mall, 82 consumers indicated that they buy brand A of a certain product, 71 buy brand B, and 46 buy both brands. How many consumers participating in the survey buy only brand A?

Answer 1

.....I think that is correct. There were 122 - 107 = 15 that didn't take the survey. And I believe there were 36 that bought ONLY brand A.