Pick the picture that shows how these three classes are related: Doctors, Women, Mothers.

A small circle inside a larger circle, and a third circle overlapping both of them

Correct answerYour answerTwo overlapping circles inside a larger circle

Correct answerYour answerThree circles, each overlapping the other two

Correct answerYour answerA small circle inside a larger circle, and a third circle overlapping the larger circle only

Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer A

Correct answer: A

Every mother is a woman: Mothers sits inside Women.
Some doctors are women and some are men: Doctors overlaps Women.
Some mothers are doctors and some are not, and many doctors are not mothers: Doctors also overlaps Mothers.
So a small circle sits inside a larger one, and a third circle cuts across both.

Worth noting

The diagram where the third circle meets only the larger circle would mean no mother is a doctor. Women doctors who are mothers exist, so Doctors must cut the small circle too.

Concept: Deciding inside, apart or overlap for each pair of classes
Typical timeTypical: 70 s
Your timeYours: —

The rule this testsWhich diagram fits

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Ten questions from Venn Diagrams, at your own pace.

Pick the picture that shows how these three classes are related: Doctors, Women, Mothers.

Explanation