Which statement is best shown by two completely separate circles?
- Some doctors are men only
- Some men are doctors only
- All men are mortal only
- No man is a tree
Show answer and solution
Correct answer: D. No man is a tree
1. 'No X is Y' means X and Y have no common element.
2. Two completely separate circles show this disjoint relation.
3. The other options use 'some' or 'all', not 'no'.
4. Hence option A.
_Source: jkchrome.com SSC Venn Diagrams PDF (Mistral OCR), section on disjoint sets_