A car dealership interviewed every driver who came onto their lot on Tuesday. This produced the following results: there were 61 people who owned trucks and 115 people who owned cars. If 14 people owned both a truck and a car and 8 people owned neither, how many people were interviewed?Hi,Let set A be the truck owners and set B be the car owners.We first get the number of the union of A and B to get the total of owners of either of the vehicles:
A union B = 61 + 115 – 4
A union B = 172To get the total number of interviewees, we add the 8 remaining people who owned neither of the vehicles. The answer is:
Answer = 172 + 8
Answer = 180 people

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