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Three statements are followed by four conclusions numbered I, II, III and IV. You have to consider these statements to be true, even if they seem to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: 1. No plant is a flower. 2. No flower is a leaf. 3. Some plants are leaf. Conclusions: I. No leaf is a plant. II. No leaf is a flower. III. Some flowers are plants. IV. All leaf are plants.

Three statements are followed by four conclusions numbered I, II, III and IV. You have to consider these statements to be true, even if they seem to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: 1. No plant is a flower. 2. No flower is a leaf. 3. Some plants are leaf. Conclusions: I. No leaf is a plant. II. No leaf is a flower. III. Some flowers are plants. IV. All leaf are plants. Correct Answer Only conclusion II follows.

 

The least possible Venn diagram for the given statements is as follows,

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Conclusions:

I. No leaf is a plant → False (It is possible but not definite)

II. No leaf is a flower → True (From the Venn diagram we see it is possible)

III. Some flowers are plants → False (It is possible but not definite)

IV. All leaves are plants → False (It is possible but not definite)

 

Hence, the correct answer is Only conclusion II follows.

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