Verbal Reasoning - Syllogism - Discussion

Discussion Forum : Syllogism - Syllogism 1 (Q.No. 11)
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.

11.

Statements: Some dogs are bats. Some bats are cats.

Conclusions:

  1. Some dogs are cats.
  2. Some cats are dogs.

Only (1) conclusion follows
Only (2) conclusion follows
Either (1) or (2) follows
Neither (1) nor (2) follows
Both (1) and (2) follow
Answer: Option
Explanation:
Discussion:
59 comments Page 2 of 6.

Tanvi Sharma said:   3 months ago
For me, the correct answer would be C, as per the conditions for either/or. So, Both conclusions fulfil this condition.
(2)

Souvik Mohanty said:   8 years ago
We can see here it's a case of complementary pairs, if we look at it closely both the possibility are wrong but you see in the answer A option is there as either.

For example, take a set A={5, . }, B={5, . }, C={5, . } now when we say some A is B we can see that in set A and B we have one common element as 5 but the rest information is not know to us this leads two cases the remaining may either be same or either it may be entirely different but in case of syllogism we mark the answer on the basis of 100% true validity of the given information since we are given only a part of the information we can't conclude anything here comes the concept of complimentary pair. Please search google for more idea on complimentary pairs. Thank you and All the best.
(2)

Ayub said:   1 decade ago
Answer is correct. Although it may seem that from Venn diagram 2 the answer is not correct but its just an assumption that some dogs are bats as shown in the diagram 2. Because nowhere its mentioned that some dogs are bats or some bats are dogs. We have just assumed the probability that some dogs may be bats and vice versa. So we cannot conclude over that assumption. So the answer.
(1)

VAIBHAV INGLE said:   9 years ago
In order to solve the same type of problem. We can conclude that. 1st draw all the possible venns and after that match the conclusions which satisfy both.
(1)

Archita said:   6 years ago
Thanks @Souvik.
(1)

Brina said:   3 years ago
The first diagram of the syllogism between bats and cats are wrong in relation to dogs, just because it in order for dogs to be cats it has to go into bats first, it will then not negate the fact that it has the possibility of it being a cat. Conclusion one should follow and latter cannot because the process is not reversed.
(1)

Madhav said:   6 years ago
E is the right answer.
(1)

Bapin said:   1 decade ago
The relation between Cat and Dog is uncertain i.e. relation may be possible or not possible.

So the D is correct.
(1)

Nageswara naik said:   1 decade ago
Yes the relation between Cat and Dog is uncertain i.e. relation may be possible or not possible. So the D is correct.
(1)

Akash Verma said:   1 decade ago
We simply have to pay attention to the fact that for a statement to be true, it must follow every possible venn-diagram.

Obeying just one trace/diagram does not suffice to declare the statement to be correct.
(1)


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