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Question

In each of the questions below are given three statements followed by three conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of given conclusions logically follows from the given statements disregarding commonly known facts. Give answer

Statements:All Januarys are Februarys.

No February is March.

All marches are Aprils.

Conclusions:I. some March are not Februarys.

II. Some marches are Aprils.

A If only conclusion I follows. Correct Answer Incorrect Answer
B If only conclusion II follows. Correct Answer Incorrect Answer
C If either conclusion I or conclusion II follows. Correct Answer Incorrect Answer
D If neither conclusion I nor conclusion II follows. Correct Answer Incorrect Answer
E If both conclusion I and conclusion II follows. Correct Answer Incorrect Answer

Solution

No February is March (E) ⇒ Conversion ⇒ No march is a February (E). ⇒ I.I. ⇒ some marches are not Februarys (O). Hence, conclusion I will follow. All marches are Aprils (A) ⇒ Conversion ⇒ some marches are Aprils (I). Hence, conclusion II will also follow. ALTERNATE METHOD: All possible cases: In all the cases, I and II follow.

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