Identify the diagram that best represents the relationship among classes given…

2017

Identify the diagram that best represents the relationship among classes given below.
Brinjal, Banana, Vegetables

Attempted by 1 students.

Show answer & explanation

Concept: In a class-relationship (Venn) diagram, one class is drawn INSIDE another only when it is fully contained in it (a subset), and two classes are drawn as separate, non-touching circles when they have nothing in common (disjoint). So before choosing a figure, decide the real-world relationship between each pair of terms.

Apply this to Brinjal, Banana and Vegetables:

  • Brinjal is a kind of vegetable, so every brinjal is a vegetable. Brinjal must sit as a smaller circle wholly INSIDE the Vegetables circle.

  • Banana is a fruit, not a vegetable, so it shares nothing with Vegetables and nothing with Brinjal. Banana must be a separate circle, disjoint from the other two.

Cross-check: the matching figure is the one showing a large circle (Vegetables) with one small circle inside it (Brinjal), and a completely separate circle alongside (Banana) — a big circle enclosing a single small circle plus one detached circle outside.

The other figures encode wrong relationships: three fully separate circles would deny that brinjal is a vegetable; one big circle holding two inner circles would wrongly make banana a vegetable too; three circles nested one inside another would wrongly chain all three as subsets.

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