The question given below contains three elements. These elements may or may…
2025
The question given below contains three elements. These elements may or may not have some inter linkage. Each group of elements may fit into one of these diagrams at (A), (B), (C), (D) and/or (E). You have to indicate the group of elements which correctly fits into the diagrams. Which of the following diagrams indicates the best relation between Men, Rodents and Living beings ?
Attempted by 2 students.
Show answer & explanation
Concept: In a three-term classification (Venn diagram) question, the correct diagram encodes the real-world logical relationship among the three given terms — two circles overlapping means the two categories share some common members, one circle drawn entirely inside another means the outer category strictly contains the inner one, and a circle drawn apart from the rest means that category has no direct link to the others. The diagram to pick is the one whose sizes, nesting and overlaps match the true relationship between the three terms.
Application: work out the relationship between Men, Rodents and Living beings step by step.
Every man is a living being, so the circle for Men must lie entirely inside the circle for Living beings.
Every rodent is a living being, so the circle for Rodents must also lie entirely inside the circle for Living beings.
No man is a rodent and no rodent is a man, so the circle for Men and the circle for Rodents must not overlap each other.
Cross-check: rule out the other diagrams against these two facts:
A diagram where all three circles overlap each other would mean some individuals are counted as both Men and Rodents at once — false, since no man is a rodent.
A diagram with three separate circles, none inside another, would mean Living beings has no direct link to Men or Rodents — false, since both Men and Rodents are living beings.
A diagram with all three circles nested one strictly inside the next would mean one of Men or Rodents is a bigger category that fully contains the other — false, since neither contains the other.
So the diagram with one large circle for Living beings that fully contains two separate, non-overlapping circles for Men and Rodents is the correct relation.