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    Question

    In each of the following question below are given some

    statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements:Some rays are rainbows.All rainbows are clouds.Some clouds are stars.Conclusions:I. Some rays are stars.II. Some rainbows are stars.III. Some stars are rainbows.IV. Some clouds are rays
    A Only conclusions I and III follow Correct Answer Incorrect Answer
    B Only conclusions II and IV follow Correct Answer Incorrect Answer
    C Only conclusion IV follows Correct Answer Incorrect Answer
    D Only conclusions I and IV follow Correct Answer Incorrect Answer

    Solution

    Some rays are rainbows (I) + All rainbows are clouds (A) → Some rays are clouds (I) + Some clouds are stars (I) → No conclusion. Hence conclusion I does not follow.
    All rainbows are clouds (A) + Some clouds are stars (I) → No conclusion. Hence neither conclusion II nor III follow.
    Some rays are rainbows (I) + All rainbows are clouds (A) → Some rays are clouds (I) → Conversion → Some clouds are rays (I). Hence conclusion IV follows.

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