Sunday 14 August 2011

syllogism

In each of the following questions two statements are given and these statements are followed by two conclusions numbered (1) and (2). You have to take the given two statements to be true even if they seem to be at variance from commonly known facts. Read the conclusions and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.
Give answer:
  • (A) If only (1) conclusion follows
  • (B) If sonly (2) conclusion follows
  • (C) If either (1) or (2) follows
  • (D) If neither (1) nor (2) follows and
  • (E) If both (1) and (2) follow.
1.  Statements: Some actors are singers. All the singers are dancers.
Conclusions:
  1. Some actors are dancers.
  2. No singer is actor.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option A
Explanation:
2.  Statements: All the harmoniums are instruments. All the instruments are flutes.
Conclusions:
  1. All the flutes are instruments.
  2. All the harmoniums are flutes.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option B
Explanation:
3.  Statements: All the poets are goats. Some goats are trees.
Conclusions:
  1. Some poets are trees.
  2. Some trees are goats.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option B
Explanation:
4.  Statements: Some mangoes are yellow. Some tixo are mangoes.
Conclusions:
  1. Some mangoes are green.
  2. Tixo is a yellow.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option D
Explanation:
5.  Statements: Some ants are parrots. All the parrots are apples.
Conclusions:
  1. All the apples are parrots.
  2. Some ants are apples.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option B
Explanation:
6.  Statements: Some pearls are jewels. Some jewels are ornaments.
Conclusions:
  1. Some jewels are pearls.
  2. Some ornaments are jewels.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option E
Explanation:
7.  Statements: Some hens are cows. All the cows are horses.
Conclusions:
  1. Some horses are hens.
  2. Some hens are horses.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option E
Explanation:


Both (1) and (2) follow.
8.  Statements: Some papers are pens. All the pencils are pens.
Conclusions:
  1. Some pens are pencils.
  2. Some pens are papers.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option E
Explanation:
9.  Statements: All the actors are girls. All the girls are beautiful.
Conclusions:
  1. All the actors are beautiful.
  2. Some girls are actors.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option E
Explanation:
10.  Statements: All the flowers are leaves. Some leaves are birds.
Conclusions:
  1. Some birds are flowers.
  2. Some leaves are flowers.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option B
Explanation:


Only (2) conclusion follows.
11.  Statements: All the windows are doors. No door is a wall.
Conclusions:
  1. Some windows are walls.
  2. No wall is a door.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option B
Explanation:
12.  Statements: All cups are books. All books are shirts.
Conclusions:
  1. Some cups are not shirts.
  2. Some shirts are cups.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option B
Explanation:
13.  Statements: Some cows are crows. Some crows are elephants.
Conclusions:
  1. Some cows are elephants.
  2. All crows are elephants.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option D
Explanation:
14.  Statements: All the pencils are pens. All the pens are inks.
Conclusions:
  1. All the pencils are inks.
  2. Some inks are pencils.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option E
Explanation:
15.  Statements: Some dogs are bats. Some bats are cats.
Conclusions:
  1. Some dogs are cats.
  2. Some cats are dogs.
A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer & Explanation
Answer: Option D
Explanation:
 
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30 comments:

  1. Unknown12 January 2014 at 01:24

    very good job

    ReplyDelete
  2. Shashank Pal24 February 2014 at 08:38

    give some cat level syllogism

    ReplyDelete
  3. Unknown6 March 2014 at 01:10

    i have doubt on 3 rd question answer. actually middle term is not distributed in the question then how can we conclude on combined terms?

    ReplyDelete
    Replies
    1. Unknown16 August 2015 at 03:27

      Statements: All the poets are goats. Some goats are trees. Here conclusion is arrived by the conversion of the second premise, so no middle term is involved. No such confusions is met if you solve syllogism by Raval's Notations.

      Delete
  4. Unknown28 November 2014 at 04:43

    nice..........

    ReplyDelete
  5. Unknown29 November 2014 at 19:56

    nice

    ReplyDelete
  6. Unknown13 September 2015 at 09:49

    nice..easy to understand

    ReplyDelete
  7. Unknown17 February 2017 at 00:40

    Statement
    1.all men are girls.
    2.some girls are student.
    Conclusion
    1.all girls are men.
    2.some student are girls

    Which conclusion follows

    ReplyDelete
    Replies
    1. Unknown18 July 2017 at 10:01

      2 follows

      Delete
    2. Unknown4 September 2017 at 23:15

      Only 2 follows

      Delete
    3. Unknown26 February 2018 at 22:24

      This comment has been removed by the author.

      Delete
    4. Unknown6 April 2018 at 22:54

      only 2 follows

      Delete
    5. Unknown9 October 2018 at 10:28

      Only conclusion 2 follows

      Delete
    6. Cibi21 June 2019 at 17:40

      Only two follows.though it is all students are girls...some students are girls toooo right ...so 2 follows

      Delete
    7. FAIZ 2 August 2020 at 00:23

      Only 2 conclusion follow

      Delete
    8. Unknown11 December 2020 at 07:23

      conclusion 2 follows.....

      Delete
  8. Unknown9 May 2018 at 10:06

    In the problem we don't consider 2nd diagrams then what is the use of the diagram

    ReplyDelete
  9. Aisha3 June 2018 at 08:59

    Useful post! Aptitude test preparation has been vital for career growth guidance for women.

    ReplyDelete
  10. Kbrocks12 July 2018 at 07:14

    very helpful

    ReplyDelete
  11. Unknown19 July 2018 at 06:56

    Nice question for placement presentation

    ReplyDelete
  12. Unknown19 August 2018 at 03:17

    only 2 follows

    ReplyDelete
  13. Unknown21 August 2018 at 22:01

    only 2 follows

    ReplyDelete
  14. Unknown20 September 2018 at 03:26

    nice

    ReplyDelete
  15. Unknown12 October 2018 at 04:26

    excellent

    ReplyDelete
  16. Unknown21 December 2018 at 08:13

    Nice explanation


    ReplyDelete
  17. Unknown18 April 2019 at 23:23

    i have doubht in Q11,12 can anyone plz explain me how to solve q11,12

    ReplyDelete
    Replies
    1. Unknown30 June 2020 at 08:44

      Yea bro actually i have also doubt on those questions i think both answers ARE E

      Delete
  18. Roshan Pandey6 September 2020 at 22:00

    These are all simple questions, can I expect the same standard in Infosys as well?

    ReplyDelete
  19. B10 August 2021 at 09:40

    In question 4,in conclusion it says tixo is yellow. In second diagram it shows that tixo is yellow but the answer says it doesn't.
    Explanation please.

    ReplyDelete
  20. Unknown21 August 2021 at 13:55

    very super its help to me

    ReplyDelete

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