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Home Logical Reasoning Logical Problems See What Others Are Saying!
  • Question
  • Fact 1: All chickens are birds.
    Fact 2: Some chickens are hens.
    Fact 3: Female birds lay eggs.
    If the first three statements are facts, which of the following statements must also be a fact?
    I: All birds lay eggs.
    II: Some Hens are birds.
    III: Some chickens are not hens.


  • Options
  • A. I only
  • B. II only
  • C. II and III only
  • D. None of the statements is a known fact.

  • Correct Answer
  • II and III only 

    Explanation
    The first statement cannot be true because only female birds lay eggs. Statement II is true because some hens are chickens and all chickens are birds. Statement III is also true because if only some chickens are hens, then some must not be hens.

  • 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


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