In a survey of 122 consumers conducted in a shopping mall, 83 consumers indicated that they buy brand A of a certain product, 69 buy brand B, and 46 buy both brands. How many consumers participating in the survey buy at least one of these brands?
A) 20 consumers
B) 28 consumers
C) 18 consumers
D) 106 consumers
E) 48 consumers
F) 30 consumers

Question

In a survey of 122 consumers conducted in a shopping mall, 83 consumers indicated that they buy brand A of a certain product, 69 buy brand B, and 46 buy both brands. How many consumers participating in the survey buy at least one of these brands? ​
A) 20 consumers
B) 28 consumers
C) 18 consumers
D) 106 consumers
E) 48 consumers
F) 30 consumers

Quizplus · Accepted Answer

To find the number of consumers buying at least one brand, we need to add the number of consumers buying brand A, brand B and both brands and subtract the number of consumers buying both brands to avoid double counting. 
So, 
Number of consumers buying at least one brand = (83 + 69 - 46) = 106. 
Therefore, option D is the correct answer.

In a Survey of 122 Consumers Conducted in a Shopping