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Two statements are given followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: All crows are sparrows. All ducks are sparrows. Conclusions: I. No sparrow is a crow. II. No crow is a duck. III. Some crows are ducks.

Two statements are given followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: All crows are sparrows. All ducks are sparrows. Conclusions: I. No sparrow is a crow. II. No crow is a duck. III. Some crows are ducks. Correct Answer Either conclusion II or III follows

Least Possible Venn Diagram:

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Conclusions:

I. No sparrow is a crow  → Doesn't Follows (Because all crows are sparrows than no sparrow is a crow can not be possible)

II. No crow is a duck  → Doesn't Follows (It is possible but not definite because there is no relation between crows and ducks)

III. Some crows are ducks  → Doesn't Follows (It is possible but not definite)

Both (II) and (III) are complimentary pair.

Hence, "either (II) or (III) follows".

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