Syllogism Needles and Threads
CMAT 2024 · Logical Reasoning · Easy · Logical Reasoning
All needles are threads, All threads are boxes. All trees are boxes. (A) No needle is tree. (B) Some trees are threads (C) Some boxes are needles (D) Some trees are needles
Choose the correct answer from the options given below:
- A.
A and B only
- B.
A, B and D only
- C.
B only
- D.
C only
Answer
D
Explanation
From "All needles are threads" and "All threads are boxes", we get "All needles are boxes". By conversion, "Some boxes are needles" is definitely true (C). None of the other conclusions logically follow.
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