New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    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. Statement: No Lamp is Solar. Some Lamp are Light. All Light are Kerosene. Conclusions: I. Some Kerosene are Lamp. II. No Light is Solar. III. Some Kerosene are Light.
    A Only conclusion I follows Correct Answer Incorrect Answer
    B Only conclusions III follows Correct Answer Incorrect Answer
    C Only conclusions II and III follow Correct Answer Incorrect Answer
    D Only conclusions I and III follow Correct Answer Incorrect Answer

    Solution

    Some Lamp are Light (I) + All Light are Kerosene (A) → Some Lamp are Kerosene (I) → Conversion → Some Kerosene are Lamp (I). Hence conclusion I follows. No Lamp is Solar (E) → Conversion → No Solar is Lamp (E) + Some Lamp are Light (I) → Some Light are not Solar (O*). Hence conclusion II does not follow. All Light are Kerosene (A) → Conversion → Some Kerosene are Light (I). Hence conclusion III follows.

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