Say x people own both cars.
(16 - x) + (11 - x) = 15 --> x = 6.
Bunuel - Would a question in the GMAT be this misleading with its choice of language. I mean this is a pretty straightforward question. Simple Venn diagram problem but the question says 16 people own Fords and 11 own Toyotas. Immediately I am thinking there are 27 people in this town. For the question to be less misleading, the question might say, " In a small town, there 16 Fords and 11 Toyotas registered with the Department of Motor Vehicles. ...." Is that something more along the lines of how a question like this would be worded? I don't see the source of this problem listed.
I am curious to know how many people went with 12. Of course 12 is the twice the correct answer and is how i got it wrong.
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