Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow from the statements.
Statements:
All streams are rivers.
All ponds are rivers.
All rivers are oceans.
Conclusions:
I. Some oceans are streams.
II. All ponds are oceans.
III. Some oceans are not rivers.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is opiton 1 i.e. Only conclusions I and II follow.
Conclusions:
I. Some oceans are streams. - Follows (because All streams are rivers and All rivers are oceans. So, Some oceans are streams too)
II. All ponds are oceans. - Follows (because All ponds are rivers and All rivers are oceans. So, All ponds are oceans too)
III. Some oceans are not rivers. - Does not follow (because All rivers are oceans given.)