Question 59
MediumOriginal questionAssume the statements are true.
Statements: No lock is a latch. Some latches are bolts.
Conclusions:
I. All bolts being locks is a possibility.
II. Some locks being bolts is a possibility.
Show the answer and explanation
CorrectNot quiteAnswer B
Correct answer: B
Explanation
Some bolts are latches, and no latch is a lock. So those bolts can never be locks, and 'all bolts are locks' is impossible. I does not follow.
Bolts that are not latches are unrestricted, so a picture where some of them are locks obeys every statement. II follows.
Only II follows.
Worth noting
A possibility fails only when it clashes with a definite fact. Here 'Some bolts are not locks' is definite, and it kills conclusion I.
- Concept
- Possibility blocked by a definite Some … not
- Typical timeTypical
- 70 s
- Your timeYours
- —
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