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(s) from the statements.
Statement I: All brothers are sisters.
Statement II: All sisters are wives and all wives are sons.
Conclusion I: All brothers are sons.
Conclusion II: Some sons are wives.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Both conclusions I and II follows.
The least possible Venn Diagram for the given statements is drawn below:
Conclusions:
I. All brothers are sons → True (As all brothers are sisters, all sisters are wives, all wives are sons, so all brothers are sons is also true.)
II. Some sons are wives → True (As all wives are sons, so some sons are wives is also true.)