logo

CuriousTab

CuriousTab

Discussion

Home ‣ Logical Reasoning ‣ Logical Deduction See What Others Are Saying!
  • Question

  • Statements: Some dogs are rats. All rats are trees. Some trees are not dogs.

    Conclusions:

    1. Some trees are dogs.
    2. All dogs are trees.
    3. All rats are dogs.
    4. No tree is dog.


  • Options
  • A. None follows
  • B. Only I follows
  • C. Only I and II follow
  • D. Only II and III follow
  • E. All follow

  • Correct Answer
  • Only I follows 

    Explanation
    Some dogs are rats. All rats are trees.

    Since one premise is particular, the conclusion must be particular and should not contain the middle term. So, it follows that 'Some dogs are trees'. I is the converse of this conclusion and so it holds.

    All rats are trees. Some trees are not dogs.

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

    More questions

    • 1. Statement: Footpaths of a busy road are crowded with vendors selling cheap items.

      Courses of Action:

      1. The help of police should be sought to drive them away.
      2. Some space should be provided to them where they can earn their bread without blocking footpaths.


    • Options
    • A. Only I follows
    • B. Only II follows
    • C. Either I or II follows
    • D. Neither I nor II follows
    • E. Both I and II follow
      • Discuss
    • 2. 8 12 9 13 10 14 11

    • Options
    • A. 14 11
    • B. 15 12
    • C. 8 15
    • D. 15 19
    • E. 8 5
      • Discuss
    • 3. Statement: The government has decided to hold the employers responsible for deducting tax at source for all its employees.

      Assumptions:

      1. The employers may still not arrange to deduct tax at source for its employees.
      2. The employees may not allow the employers to deduct tax at source.


    • Options
    • A. Only assumption I is implicit
    • B. Only assumption II is implicit
    • C. Either I or II is implicit
    • D. Neither I nor II is implicit
    • E. Both I and II are implicit
      • Discuss
    • 4. Statement: Mr. X, an active member of the Union, often insults his superiors in the office with his rude behaviour.

      Courses of Action:

      1. He should be transferred to some other department.
      2. The matter should be referred to the Union.


    • Options
    • A. Only I follows
    • B. Only II follows
    • C. Either I or II follows
    • D. Neither I nor II follows
    • E. Both I and II follow
      • Discuss
    • 5. Choose the picture that would go in the empty box so that the two bottom pictures are related in the same way as the top two:

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
      • Discuss
    • 6. Statements: Some dreams are nights. Some nights are days.

      Conclusions:

      1. All days are either nights or dreams.
      2. Some days are nights.


    • Options
    • A. Only conclusion I follows
    • B. Only conclusion II follows
    • C. Either I or II follows
    • D. Neither I nor II follows
    • E. Both I and II follow
      • Discuss
    • 7. Statement: Why don't you invite Anthony for the Christmas party this year?

      Assumptions:

      1. Anthony is not from the same city.
      2. Unless invited Anthony will not attend the party.


    • Options
    • A. Only assumption I is implicit
    • B. Only assumption II is implicit
    • C. Either I or II is implicit
    • D. Neither I nor II is implicit
    • E. Both I and II are implicit
      • Discuss
    • 8. Look at this series: 2, 1, (1/2), (1/4), ... What number should come next?

    • Options
    • A. (1/3)
    • B. (1/8)
    • C. (2/8)
    • D. (1/16)
      • Discuss
    • 9. book

    • Options
    • A. fiction
    • B. pages
    • C. pictures
    • D. learning
      • Discuss
    • 10. Statements: Some tables are TVs. Some TVs are radios.

      Conclusions:

      1. Some tables are radios.
      2. Some radios are tables.
      3. All radios are TVs.
      4. All TVs are tables.


    • Options
    • A. None follows
    • B. All follow
    • C. Only I and III follow
    • D. Only II and IV follow
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.