Select the Venn diagram that best represents the relationship between the following classes.
Boys, Swimmers, Girls
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) →
In a Venn diagram two circles overlap when some members belong to both classes, one circle lies inside another when every member of the first belongs to the second, and circles stay apart when the classes have no common member.
No boy is a girl, so the circles of boys and girls must stay apart
Some boys are swimmers and some are not, so the circles of boys and swimmers overlap
Some girls are swimmers and some are not, so the circles of girls and swimmers overlap
Some swimmers are neither boys nor girls (grown-up men and women), so the swimmer circle also has a part of its own
The swimmer circle crosses both, with boys and girls kept apart, as in Option (2)
