Syllogisms · Question 22 · Medium
Syllogisms question 22
Statements:
All rivers are lakes.
Some lakes are seas.
No sea is an ocean.
Conclusions:
I. Some lakes are not oceans.
II. Some rivers are seas.
Assuming the statements to be true, which conclusion(s) logically follow(s)?
- Only conclusion I follows
- Only conclusion II follows
- Both I and II follow
- Neither I nor II follows
Answer and explanation
Answer: A. Only conclusion I follows
Explanation: The lakes that are seas cannot be oceans, so some lakes are not oceans (I follows). The seas among the lakes need not include any river, so II does not follow.
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