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Question

In each of the questions below are given three statements followed by three conclusions numbered I, II and III. 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.

Statement:

Some pipes are tanks.

All tanks are lids.

All lids are covers.

Conclusion:

I. Some covers are lids.

II. Some pipes are covers.

III. Some pipes are not lids.

A Only I and III follows Correct Answer Incorrect Answer
B Only II and III follows Correct Answer Incorrect Answer
C Only I and II follow Correct Answer Incorrect Answer
D All follows Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

All lids are covers(A) → Conversion → Some covers are lids(I). Hence, conclusion I will follow. Some pipes are tanks(I) + All tanks are lids(A) → Some pipes are lids(I) + All lids are covers(A) → Some pipes are covers(I). Hence, conclusion II will follow but conclusion III will not follow.

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