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  • Question

  • Statements: All jungles are buses. All books are buses. All fruits are books.

    Conclusions:

    1. Some fruits are jungles.
    2. Some buses are books.
    3. Some buses are jungles.
    4. All fruits are buses.


  • Options
  • A. Only I, II and III follow
  • B. Only I, II and IV follow
  • C. Only II, III and IV follow
  • D. All follow
  • E. None of these

  • Correct Answer
  • Only II, III and IV follow 

    Explanation
    III is the converse of the first premise and II is the converse of the second premise.

    So, both of them hold.

    All fruits are books. All books are buses.

    Since both the premises are universal and affirmative, the conclusion must be universal affirmative and should not contain the middle term. So, it follows that 'All fruits are buses'. Thus, IV follows.

    All jungles are buses. All books are buses.

    Since the middle term 'buses' is not distributed ever once in the premises, no definite conclusion follows.

    All fruits are buses. All books are buses.

    As discussed above, no definite conclusion can be drawn.

    All jungles are buses. All fruits are buses.

    Again, no definite conclusion follows.

    Logical Deduction problems

    Search Results

    • 1. Statements: No table is fruit. No fruit is window. All windows are chairs.

      Conclusions:

      1. No window is table.
      2. No chair is fruit.
      3. No chair is table.
      4. All chairs are windows.


    • Options
    • A. None follows
    • B. Only I and II follow
    • C. Only III and IV follow
    • D. All follow
    • E. None of these
      • Discuss
    • 2. Statements: Some tapes are discs. Some discs are cassettes. Some cassettes are songs.

      Conclusions:

      1. Some songs are discs.
      2. Some cassettes are tapes.
      3. Some songs are tapes.
      4. No song is a disc.


    • Options
    • A. Only either I or IV follows
    • B. Only either II or IV follows
    • C. Only III and IV follow
    • D. Only III and either II or IV follows
    • E. None of these
      • Discuss
    • 3. Statements: Some papers are cats. All cats are bats. No bat is horse.

      Conclusions:

      1. Some papers are horses.
      2. No horse is cat.
      3. Some bats are papers.
      4. All papers are bats.


    • Options
    • A. Only I and II follow
    • B. Only II and III follow
    • C. Only III and IV follow
    • D. Only I and IV follow
    • E. All follow
      • Discuss
    • 4. Statements: All buildings are windows. No toys is building. Some tigers are toys.

      Conclusions:

      1. Some tigers are buildings.
      2. Some windows are tigers.
      3. All toys are tigers.
      4. Some windows are toys.


    • Options
    • A. None follows
    • B. Only I and II follow
    • C. Only III and IV follow
    • D. Only I and III follow
    • E. All follow
      • Discuss
    • 5. Statements: No man is sky. No sky is road. Some men are roads.

      Conclusions:

      1. No road is man.
      2. No road is sky.
      3. Some skies are men.
      4. All roads are men.


    • Options
    • A. None follows
    • B. Only I follows
    • C. Only II and III follow
    • D. Only I and III follow
    • E. None of these
      • Discuss
    • 6. Look carefully at the sequence of symbols to find the pattern. Select correct pattern:

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
      • Discuss
    • 7. Look carefully at the sequence of symbols to find the pattern. Select correct pattern:

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
      • Discuss
    • 8. Look carefully at the sequence of symbols to find the pattern. Select correct pattern:

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
      • Discuss
    • 9. Look carefully at the sequence of symbols to find the pattern. Select correct pattern:

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
      • Discuss
    • 10. Look carefully at the sequence of symbols to find the pattern. Select correct pattern:

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
      • Discuss

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