Question 12
MediumOriginal questionAssume the statements are true.
Statements: All buttons are coins. No coin is a ring.
Conclusions:
I. No button is a ring.
II. Some rings are buttons.
Show the answer and explanation
CorrectNot quiteAnswer A
Correct answer: A
Explanation
Every button is a coin, and no coin is a ring, so no button can be a ring. Conclusion I follows.
Conclusion II says the opposite of I. Since I is definite, II is definitely false.
Only I follows.
Worth noting
The pair 'No button is a ring / Some rings are buttons' looks like an either-or pair, but either-or needs NEITHER to follow alone. Here I follows, so the answer is 'Only I'.
- Concept
- All + No gives No
- Typical timeTypical
- 70 s
- Your timeYours
- —
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