Statements: All buildings are chalks. No chalk is toffee. Conclusion: No…
2024
Statements:
All buildings are chalks.
No chalk is toffee.
Conclusion:
No building is toffee
All chalks are buildings.
- A.
Only (1) conclusion follows
- B.
Only (2) conclusion follows
- C.
Either (1) or (2) follows
- D.
Neither (1) nor (2) follows
Attempted by 127 students.
Show answer & explanation
Correct answer: A
From the statement 'All buildings are chalks', the set of Buildings is a subset of Chalks.
From 'No chalk is toffee', the sets of Chalks and Toffee are disjoint.
Since Buildings are inside Chalks, they cannot intersect with Toffee; thus, 'No building is toffee' follows.
However, since Chalks can be larger than Buildings, 'All chalks are buildings' is not necessarily true.
Therefore, only conclusion I follows.