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One/two statements are given followed by four conclusions I, II, III and IV. You have to consider the two statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follow from the given statements. Statements: Some cats are dogs. Some dogs are stones. Conclusions: I. No cat is stone. II. All dogs are stones. III. Some stones are cats. IV. No dog is cat.

One/two statements are given followed by four conclusions I, II, III and IV. You have to consider the two statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follow from the given statements. Statements: Some cats are dogs. Some dogs are stones. Conclusions: I. No cat is stone. II. All dogs are stones. III. Some stones are cats. IV. No dog is cat. Correct Answer Either I or III follows

According to the statements, we have made a Venn diagram as shown below-

Important Points

Conditions of Either-or case:

1. The elements should be the same in both statements

2. Individually both the conclusions should be false

3. One conclusion should be positive and one conclusion should be negative (Complementary pair)

The two complementary pairs are:

1) All + Some not

2) No + Some

Additional Information

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