Tricks to solve Syllogism Questions Quickly - PDF

Syllogism is an important chapter for every competitive exam in which there is Reasoning ability section. In IBPS PO Prelims 2015, there were 5 questions from Syllogism. Many candidates face problem in solving these simple questions so I decided to write a detailed tutorial on this chapter.

Types of conditions

As I always try to make things simple so instead of writing formulae and all that bulky stuffs, here I am explaining the technique using simple examples.

1) All pigs are animals. Some animals are mammals

In this example, there are two sub-conditions.

Condition 1 - All pigs are animals. So circle Pig will be covered by circle Animals.
Conditions 2 - Some animals are mammals. This sub-conditions give two situations :- 1) Some pigs are mammals 2) No Pig is mammal. 
syllogism trick

2) All pigs are animals. All animals are mammals

This example is bit simple. All pigs are part of category animal and all animals are part of category mammals.
syllogism questions

3) Some pigs are animals. All animals are mammals

In this example there are two conditions. There is no proper order to apply these conditions. Some pigs are animals.  All animals are mammals so Animals circle is covered Mammals circle. 

Conclusion is some but not all pigs are mammals.
syllogism circles

In exam, try to make circles for every syllogism question. These questions take hardly 20-30 seconds to solve with this method. This year these type of questions replaced mirror image questions, so never skip these marks rich questions.

Practice Questions

Today we are sharing Practice Sets of Syllogism. Try out these and share your marks. Keep Practicing !
syllogism either or case

SET 1

In these questions two/three statements followed by two conclusions numbered I and II  have been given. You have to decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statement 1:

All fishes are birds.
No Bird is an animal.
All animals are mammals.

Conclusions A:

I   At least some birds are mammals.
II All mammals being birds is a possibility.

1) Only conclusion II is true
2) Neither conclusion I or II is true
3) Both conclusion I and II are true
4) Either conclusion I or II is true
5) Only conclusion I is true

Conclusions B

I No fish is an animal
II All fishes being mammals is a possibility

1) Only conclusion II is true
2) Neither conclusion I or II is true
3) Both conclusion I and II are true
4) Either conclusion I or II is true
5) Only conclusion I is true

Statement 2:

Some forces are groups
All groups are powers
All powers are growth

Conclusions A

I At least some forces are growth
II All groups are growth

1) Only conclusion II is true
2) Either conclusion I or II is true
3) Only conclusion I is true
4) Neither conclusion I or II is true
5) Both conclusion I and II are true

Conclusions B

I All forces being powers is possibility
II All powers are group

1) Only conclusion II is true
2) Either conclusion I or II is true
3) Only conclusion I is true
4) Neither conclusion I or II is true
5) Both conclusion I and II are true

Statement 3:

Some triangle are circles
All squares are circles

Conclusions:

I  At least some squares are triangle
II All circles are triangles

1) Only conclusion I is true
2) Either conclusion I or II is true
3) Both conclusion I and II are true
4) Only conclusion II is true
5) Neither conclusion I or II is true

Statement 4:

All airways are trains
No train is a station
Some stations are airports

Conclusions:

I  All airways being airports is a possibility
II No airway is a station

1) Only conclusion I follows
2) Only conclusion II follows
3) Both conclusion I and II follows
4) Either conclusion I or II follows
5) Neither conclusion I or II follows

Statement 5:

All books are scales
All scales are pencils
Some scales are pens

Conclusions A:

I  No book is pen
II All pencils are scales

1) Only conclusion I follows
2) Only conclusion II follows
3) Either conclusion I or II follows
4) Neither conclusion I or II follows
5) Both conclusion I and II follows

Conclusions B:

I At least some scales are pen
II No scale is a pen

1) Only conclusion I follows
2) Only conclusion II follows
3) Either conclusion I or II follows
4) Neither conclusion I or II follows
5) Both conclusion I and II follows

Statement 6:

All rainy are summers
Some summers are springs
No spring is sunny

Conclusion A

I  At least some rainy are springs
II Some sunny being summers is a possibility

1) Either conclusion I or II follows
2) Both conclusion I and II follows
3) Neither conclusion I or II follows
4) Only conclusion I follows
5) Only conclusion II follows

Conclusion B

I  All summers can never be sunny
II No spring is a sunny

1) Either conclusion I or II follows
2) Both conclusion I and II follows
3) Neither conclusion I or II follows
4) Only conclusion I follows
5) Only conclusion II follows

SET 2

In the questions given below four statements followed by five conclusions, one of which definitely does not logically follow ( or is not possibility of occurrence) from the given statements. That conclusion is your answer.

Statement 1:

No toy is a doll
All boxes are toys
All bears are dolls
All dolls are baskets

Conclusions

1) All baskets are toys
2) No box is a bear
3) All boxes being baskets is a possibility
4) All bears are baskets
5) No doll is a box

Statement 2:

Some logics are answers
All answers are arguments
All arguments are fights
No fight is a meaning

Conclusions

1) All meanings being logic is possibility
2) No meaning is an argument
3) All logics being meaning is a possibility
4) All answers are fights
5) No answer is a meaning

Statement 3:

All references are letters
All contacts are references
All comments are contacts
No letter is confirmation

Conclusions

1) No reference is a confirmation
2) All comments are letters
3) No contact is confirmation
4) All confirmations being comments is a possibility
5) At least some letters are contacts

Statement 4:

Some moments are memories
All moments are minutes
All memories are instances
No instance is an hour

Conclusions

1) All hours being minutes is a possibility
2) No minute is a memory
3) No hour is a memory
4) At least some seconds are instances
5) At least some minutes are instances

Statement 5:

All circles are spheres
All spheres are rectangles
No rectangle is a pyramid
No pyramid is a triangle

Conclusions:

1) At least some circles are pyramid
2) All triangles being circles is a possibility
3) All rectangles being triangles is a possibility
4) At least some  rectangles are circles
5) No pyramid is a sphere

Statement 6:

No hotel is a motel
All motels are apartments
All apartments are inns
No inn is a guest house

Conclusions

1) All hotels being inns is a possibility
2) No hotel is a guest house
3) All hotels being apartments is a possibility
4) No motel is an inn
5) No guest house is an apartment

ANSWERS AND SOLUTIONS

SET 1

1) Conclusion A -

Ans - 2) Neither conclusion I or II is true

Conclusion B -

Ans - 3) Both conclusion I and II are true

syllogism solution


2) Conclusion A -

Ans - 5) Both conclusion I and II are true

Conclusion B -

Ans - 3) Only conclusion I is true

syllogism solution

3) Ans - 4) Neither conclusion I or II is true


syllogism solution 3

4)
syllogism solution 3

5) Conclusion A:

Ans - 4) Neither conclusion I or II follows
Conclusion B:
Ans - 3) Either conclusion I or II follows

syllogism solution 5


6)  Conclusion A:
Ans - 5) Only conclusion II follows

Conclusion B:
Ans - 2) Both conclusion I and II follows

syllogism solution

SET 2

1) Ans - 1) All baskets are toys

 syllogism solution

2) Ans - 3) All logics being meaning is a possibility



3) Ans - 4) All confirmations being comments is a possibility

syllogism solution

4) Ans - 2) No minute is a memory


syllogism solution 7


5) Ans - 1) At least some circles are pyramid


syllogism solution 8
6) Ans - 4) No motel is an inn

syllogism solution 9


Updated on 7 November 2015

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36 comments:

  1. Hello sir,
    Please post the trick of syllog which contains "Possibility" and "atleast" keywords.

    Thanks

    ReplyDelete
  2. Please help me to solve this
    1.All apartments are huts.
    2. no hut is a building
    3. all buildings are cottages
    Conclusion:

    1. no apartment is a cottage
    2. Some buildings being apartments is a possibility

    ReplyDelete
    Replies
    1. 1.All apartments are huts. ---- this ia a type A
      2. no hut is a building -------- this is a type E
      3. all buildings are cottages ------------ this is a type A

      conclusion 1:no apartment is a cottage (this is not true)
      here we can get A+E=E
      i.e.means conclusion we get ,,, no apartment is a building (which does not follow)
      conclusion 2: Some buildings being apartments is a possibility (not true)
      why 2 &3 i.e. E+A=O*
      i.e. Some cottages are not hurt , hence it does not follow.
      i hope you have understand .thanks ,HAPPY READING :)

      Delete
    2. first one will follow , using parent - child technique..................

      Delete
    3. 1. no apartment is a cottage -- (False)
      2. Some buildings being apartments is a possibility--(False)
      Using my technique

      Delete
    4. do possibility questions only by venn diagram ...........this A+E and other techniques are all bogus

      Delete
  3. Replies
    1. Sab A+E & all is bullshit and trying to be a cheetah is suicidal.Venn diagram is the best approach.pehla sahee hain ,second is wrong.

      Delete
  4. sir i have one problem i will b very thankful to you if u solve this.

    in syllogism possibility case "will normal conclusion be right or not" like
    STATEMENT:
    some A are B.
    all B are C.
    CONCLUSION:
    some A being C is a possibility.
    all A being c is a possibility.

    which will be right conclusion???

    ReplyDelete
    Replies
    1. Some A being C is a possibility.....but not the second one.

      Delete
    2. 1st will be right

      Delete
    3. I think only 2nd one is true..please let me know if i am wrong.

      Delete
    4. Lokesh I am at present facing the same problem as you did in the past so want to know if you found solution to it because people are giving contradicting views and I want a reliable source.

      Delete
    5. some+ all=some
      again
      some A are C=All A being C is Possibility

      so both the conclusion is right

      and finally i think with the help of Ven Diagram We cannt solve these type of question

      Delete
    6. Only 2nd is true, because some a are c is confirmed case, so 1st can not be in possibility case

      Delete
    7. as per me its Either 1 or Either 2 case,How come both the possibilities be true yaar ??

      Delete
    8. only 2 conclusion is true

      Delete
    9. hey guys. jab bhi conclusion me possibity aye tab use verify karne ka ek hi tarika hai .. ke aap us conclusion ko le kar given statement ko prove kar do yani reverse order me chalo.


      2nd conclusion says .. all A is C is POSSIBILITY
      as per rule.... draw venn diagram for all A is C. JO ki khud conclusion me given hai. now jo statements hai use dekh k is veen diagram me fit krne ki koshish karo. agar sab statements aap draw kar pae. then this statement with possibiliy term is valid ..otherwise not..


      remember possibilty means anything >0 and <=100 %.


      usually what happens that we can normally draw venn diagrams in multiple ways,,,..is lae possibility wala conclusion agar ek bhi diagram se valid ho jae to vo sahi hai.. otherwise not..


      but on the otherside...jis conclusion me agar possibility word nae hai..wahn pe vo conclusion har ek different venn dia. se valid hona chahiye..agar kisi ek se bhi vo valid nahi hota to toh vo overall valid nahi hoga..

      i mean to say...agar aapke pass 4 type ke venn dia ban rae hai..
      to

      possibilty wali conclusion kisi ek dia se bhi prove ho gae to vo valid hai. thats why i say ki aap use reverse order me le kar chalo aur dekho ke aap statements us diagram me fit kar pa rahe ho ya nahi.

      but normal statement agr kisi ek venn dia se bhi reh gae to vo valid nahi hogi.

      in this post jo ramandeep sir ne first venn diagram post kiya hia ..us me do alag alag venn dia possible hai...
      now ..
      conclusion 1: some pigs being mammals is a possiblity.
      conclusion 2: some pigs are mammals

      which conclusion is follows?
      clearly conc. 1 has a possibilty word in it..so it is true as it is valid for ATLEAST one type of venn dia. arrangement.
      but conclusion 2 never follows coz vo ek dia se to sahi but dusre se nahi..remember ....without "possibility" statement means always 100%..so it is not valid...


      i know it will be bit difficult for you to understand.. but trust me ... this way you will never get wrong answers and you need continuous practice to get familiarr with the rules. best way to solve syllogisn is by using the standards rules but some times especially with possibilty type conclusions its better to draw venn diagram.. rest in case any doubt , you can contact me on...

      viveksharma.v27@gmail.com

      for this ques. both conclusion are valid. moreover either wala case bhi nahi hoga. coz possibilty ka matlab is not 100%. so do uncertain cheezo me either wala case nahi aa sakta.

      moreover in normal conclusion either wala case kuch specific pairs ke liye hi valid hota hai..jaise some-no type ke do conclusions hai etc.. but condition is for both such conclusions ..subject and predicate should be same. and they both should be valid seperately.

      Delete
  5. Sir plz tell me that how many quest be attempe in sbipo in every sect toh clear cutoff plz rply sir

    ReplyDelete
  6. please explain this by using yours shortcut rules.. please help me..

    Some Necklaces are Bangles.
    All Bangles are Ornaments.
    Some Ornaments are Treasures.
    No Treasure is a Picture.
    All colours are Pictures.
    Some pictures are necklaces.

    1). I. all treasures if they are Bangles, they are also necessarily Ornaments.
    II. All necklaces if they are colours, they are also necessarily pictures.

    2). I. All ornaents which are necklaces are necessarily Bangles.
    II. no colour is treasure.

    3). I. some colour are necklaces.
    II. some ornaments are necklaces.

    4) I. some treasures are not bangles.
    II. some treasures that are bangles are also necklaces.
    GIVE ANSWERS;
    A. if only I follows.
    B. if only II follows.
    C. if either I or II follows.
    D. if neither I nor II follow.
    E. if both I and II follow..

    ReplyDelete
  7. hello sir.....questions you have shown regarding round table arrangement are not as tough as given in po exams ... sir. u r requested to make us solve those type of questions in which a lot of conditions are there....like 8 friend.8 companies,8 choices etc....we will be highly obliged 2 u.

    ReplyDelete
  8. Sir can u pls upload any techinques to solve the possibility cases in syllogism....

    ReplyDelete
  9. thanks a lot... i had problems regarding syllogism with possibilities.. nw its 100% clear to me :)

    ReplyDelete
  10. this is noy sufficent. for given answer in ibps or sbi exam

    ReplyDelete
  11. sir plz disuss more latest sylolism problem.i am helpless to solve it.or save my time

    ReplyDelete
  12. Sir can u pls upload any techinques to solve the possibility cases in syllogism....

    ReplyDelete
  13. sir would you please answer basha's question.

    ReplyDelete
  14. sir .. Why we can't solve syllogism's '''being possibilty'' questions....i mean to say. You must have a way except A+E combination techniq..pls sir tell me.i have solved a number questions of syllogism but i am not able to solve '' being possibilty''' problems.. I don't know why.. Help us..how these will be. Show me.... Its my humbl request.. Sir.. From sumit +919041671357.. Email-id khungersumit@gmail.com

    ReplyDelete

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