The question given below contains three elements. These elements may or may…
2023
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) and (D). You have to indicate the group of elements which correctly fits into the diagrams. Which of the following diagrams indicates the best relation between Tall men, Black haired people and Indians?
Attempted by 1 students.
Show answer & explanation
Concept: When three groups can each partially overlap with the other two — with no group entirely inside another and no group completely cut off from the rest — the correct diagram is three circles that all intersect one another, so every combination of membership (just one group, any two together, or all three together) is possible.
Application: A person can be a tall man, black-haired, and Indian all at once (a tall Indian with black hair), or hold only two of the three traits (a tall Indian who is not black-haired, or a black-haired Indian who is not tall), or just one trait alone (a tall man who is neither Indian nor black-haired). None of tall men, black-haired people and Indians is a subset of another, and none is completely separate from the other two, so all three circles must overlap each other, exactly as the labelled diagram below shows.
Cross-check:
A diagram where one circle sits fully inside another circle while the third circle stands completely apart is wrong here — it would force every member of the smaller group to always belong to the bigger group, and would let the separate group share no members at all with the other two, which is not true for these three traits.
A diagram of three circles nested strictly one inside the next is wrong too — it would force a fixed hierarchy (every member of the innermost group belonging to the middle group, and every member of the middle group belonging to the outer group), but none of the three traits is guaranteed to include another that way.
A diagram with two overlapping circles both sitting entirely inside a third, larger circle is also wrong — it would force every member of those two groups to always belong to the third group, but a person can carry either trait without belonging to the third group at all.
