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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. Statements: All rats are cats. Some cats are not dogs. Conclusions: I. Some dogs are not rats. II. Some dogs are rats. 

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. Statements: All rats are cats. Some cats are not dogs. Conclusions: I. Some dogs are not rats. II. Some dogs are rats.  Correct Answer Neither conclusion I nor II follows.

The least possible Venn diagram is:

Important PointsThere are only two Complementary pairs as follows:

(1) All - Some not 

(2) No - Some

Confusion PointsSome - Some not is not a complementary pair.

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