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      Question

      Read the given statements and conclusions carefully.

      Assuming that the two statements are given followed by three conclusions numbered I, II and III. 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 conclusions logically follow(s) from the statements. Statements: All rivers are hills. All hills are mountains. Conclusions: I. Some mountains are hills. II. Some rivers are not mountains. III. Some mountains are rivers.
      A Only conclusion II follows Correct Answer Incorrect Answer
      B Only conclusions I and II follow Correct Answer Incorrect Answer
      C All the conclusions follow Correct Answer Incorrect Answer
      D Only conclusions I and III follow Correct Answer Incorrect Answer

      Solution

      All hills are mountains (A) → Conversion → Some mountains are hills (I). Hence conclusion I follows.
      All rivers are hills (A) + All hills are mountains (A) → All rivers are mountains (A) → Conversion → Some mountains are rivers (I). Hence conclusion II does not follow but conclusion III follows.

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