Verbal Reasoning - Syllogism - Discussion
Discussion Forum : Syllogism - Syllogism 1 (Q.No. 12)
Directions to Solve
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 only (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.
12.
Statements: All the trucks are flies. Some scooters are flies.
Conclusions:
- All the trucks are scooters.
- Some scooters are trucks.
Answer: Option
Explanation:
Neither (1) nor (2) follows.
Discussion:
60 comments Page 1 of 6.
Shree said:
1 decade ago
Guys first thing is in syllogism we should not think the regular way.
We are considering both diagrams, imagine I drew the second diagram first. Then I agree the second statement is true.
Now I am thinking of another possibility where it cannot be true, then I drew the first diagram and figured out that it cannot be true always. In syllogism I will only say a statement is true if it is true ALWAYS. If I can deduce a way that it is not then I go with "NOT TRUE".
Let me know if that helps :).
We are considering both diagrams, imagine I drew the second diagram first. Then I agree the second statement is true.
Now I am thinking of another possibility where it cannot be true, then I drew the first diagram and figured out that it cannot be true always. In syllogism I will only say a statement is true if it is true ALWAYS. If I can deduce a way that it is not then I go with "NOT TRUE".
Let me know if that helps :).
(2)
Navn said:
1 decade ago
If we apply the conclusive rules to the given problem, we get first statement as Universal positive (UP), second statement is Particular positive.
Let truck=A, flies=B, scooters=C.
Consider 2nd statement: some scooters are flies = some flies are scooters.
Then A---->B, B---->C
Here 1st statement= Universal positive (UP).
2nd statement=Particular positive (PP).
So UP+PP= no conclusion.(for all cases).
Option D is correct.
Let truck=A, flies=B, scooters=C.
Consider 2nd statement: some scooters are flies = some flies are scooters.
Then A---->B, B---->C
Here 1st statement= Universal positive (UP).
2nd statement=Particular positive (PP).
So UP+PP= no conclusion.(for all cases).
Option D is correct.
Laxmidhar Behera said:
8 years ago
According to the diagrams, some flies are may or may not be scooters, if we go through the exclusive rules,
~ statement 1 is universal +ve & statement 2 is particular +ve.
~ A/c to conclusion 2 we can converse the 2nd statement as some files are scooters.
~ Then when we draw the conclusion, it will be particular +ve. So answer is B.
~ statement 1 is universal +ve & statement 2 is particular +ve.
~ A/c to conclusion 2 we can converse the 2nd statement as some files are scooters.
~ Then when we draw the conclusion, it will be particular +ve. So answer is B.
Jibran said:
1 decade ago
While applying the ven diagram logic to solve these particular type of problems where diagram can be drawn by two ways never count the statement to be valid which is true for one diagram and false for another diagram. Always go for the statement which is valid for both the diagrams. :-).
Dhruv said:
1 decade ago
If we make the circles for each A, B and C there are some intersections possible.
If there is a intersection of circles. This makes both statements follow.
May be this is not the right approach. Please suggest the right way to do this.
If there is a intersection of circles. This makes both statements follow.
May be this is not the right approach. Please suggest the right way to do this.
Anu said:
10 years ago
According to me it is a complementary pair. So the answer should be either or as both the conclusion are wrong. And as said by @Ram what statement says that diagram is only valid and no other possibility should be followed.
Sam said:
1 decade ago
If question comes in this way:
-->some+some = no conclusion.
-->no+no = no conclusion.
Without any 2nd thinking answer is neither both follows.
If -->all+all then try to solve by Venn diagrams.
-->some+some = no conclusion.
-->no+no = no conclusion.
Without any 2nd thinking answer is neither both follows.
If -->all+all then try to solve by Venn diagrams.
Bugs said:
1 decade ago
In some questions we are considering both the statements i.e. either 1 or 2 but in some questions why we are neglecting even though there can be a possibility of such type. Can any one explain this to me?
Uday S said:
1 decade ago
I too agree to @Hari prasad. If consider second diagram some of the scooters are trucks. Its very basic if not the second option is correct then we can't judge the question with the second diagram.
Umrah said:
8 years ago
It's simple, the given conclusions should satisfy all Venn diagram, if at least one of the Venn diagram voilates the conclusion then that set of conclusions are not the part of our answer!
(2)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers