Two statements are given, followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.
Statements:
All rivers are lakes.
Some seas are rivers.
Conclusion:
I. Some seas are lakes.
II. All lakes are rivers.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Only Conclusion I follows.
The least possible Venn Diagram for the given statements is drawn below:
Conclusions:
I. Some seas are lakes → True (As all rivers are lakes, and some seas are rivers, so, some seas are lakes is also true.)
II. All lakes are rivers → False (It is possible, but no definite conclusion can be drawn.)