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      Question

      In the question below, three statements are given

      followed by the conclusions. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Statements: All Laptops are Phones. All Phones are Tablets. No Tablet is a Mobile. Conclusions: I. All phones can be Mobile. II. No Mobile is a Laptop.
      A Only conclusion I follow Correct Answer Incorrect Answer
      B Only conclusion II follows Correct Answer Incorrect Answer
      C Either conclusion I or II follows Correct Answer Incorrect Answer
      D Both conclusions I and II follow Correct Answer Incorrect Answer
      E Neither conclusion I nor II follows Correct Answer Incorrect Answer

      Solution

      All Phones are Tablets (A) + No Tablet is an Mobile (E) → No Phone is an Mobile (E) → Probable conclusion → No conclusion. Hence conclusion I does not follow. All Laptops are Phones (A) + All Phones are Tablets (A) → All Laptops are Tablets (A) + No Tablet is an Mobile (E) → No Laptop is an Mobile (E) → Conversion → No Mobile is a Laptop (E). Hence conclusion II follows.

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