In the city of San Durango, 60 people own cats, dogs, or rabbits. If 30 people owned cats, 40 owned dogs, 10 owned rabbits, and 10 owned exactly two of the three types of pet, how many people owned all three?  Choose the most appropriate option
A) 2  B) 5  C) 8  D) 12  E) 32
You are considering a case when cat dogs and rabbit are not exactly equal to 12 .   The solution shall be 60=30+   Answer 5
<result>B</result>
In the city of San Durango, 60 people own cats, dogs, or rabbits. If 30 people owned cats, 40 owned dogs, 10 owned rabbits, and 10 owned exactly two of the three types of pet, how many people owned all three?