Three statements are given, followed by three conclusions numbered I, II and III. 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 cranes are bears.
Some tigers are cranes.
All jackals are tigers.
Conclusion:
I. Some bears are tigers.
II. All jackals are bears.
III. Some jackals are bears.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Only conclusion I follows.
The least possible Venn Diagram for the given statements is drawn below:
Conclusions:
I. Some bears are tigers → True (As all cranes are bears, some tigers are cranes, so some bears are tigers is also true.)
II. All jackals are bears → False (It is possible, but no definite conclusion can be drawn.)
III. Some jackals are bears → False (It is possible, but no definite conclusion can be drawn).
Hence, Only conclusion I follows.