Verbal Reasoning - Syllogism - Discussion
Discussion Forum : Syllogism - Syllogism 3 (Q.No. 1)
Directions to Solve
In each of the following questions there are three statements. Which are followed by three or four conclusions. Choose the conclusions which logically follow from the given statements.
1.
Statements: All the locks are keys. All the keys are bats. Some watches are bats.
Conclusions:
- Some bats are locks.
- Some watches are keys.
- All the keys are locks.
Answer: Option
Explanation:

Discussion:
62 comments Page 1 of 7.
Manoj kumar said:
1 decade ago
By Raval's notations statements are LL - K, KK - B, W - B now conclusions can be deduced at a glance.First conclusion B - L follows on linking B to L in KK - B and LL - K through common linking term K as it becomes double.Second conclusion W - K does not follow because common linking term B remains single on linking W -B and KK - B.Third conclusion KK - L does not follow because of absence of any common linking term.
Kalmesh said:
1 decade ago
I think there is no universal method in solving this? By any method if we start answering the answer should be same, but here the case is different, I think its sensitive because we can't say the second and third diagram mentioned is wrong.
That could even happen, also these second and third concepts are not mentioned particularly in the question we can't consider that as right. This is my personal opinion.
That could even happen, also these second and third concepts are not mentioned particularly in the question we can't consider that as right. This is my personal opinion.
Upendra majhi said:
10 years ago
When we arrive at ""some locks are keys "" and ""some bats are keys, "".
We get some bats are locks as correct as subjects are comparable due to predicates i.e."keys"being equal, whereas predicates are not comparable if subjects are equal.
In this case some watches are keys, watch and key are predicates of some bats are watches (true). And some bats are keys.
We get some bats are locks as correct as subjects are comparable due to predicates i.e."keys"being equal, whereas predicates are not comparable if subjects are equal.
In this case some watches are keys, watch and key are predicates of some bats are watches (true). And some bats are keys.
Theo said:
5 years ago
In my opinion, the answer is D - as 1 and 3 is correct. The argument for 1 to be correct is well stated above, however, 3 is also correct for the following reason:
If all locks are keys ( locks = keys), then all keys are locks as x=y then y=x. The diagram does not take this into consideration.
If all locks are keys ( locks = keys), then all keys are locks as x=y then y=x. The diagram does not take this into consideration.
Deep said:
1 decade ago
Option 1 is incorrect according to me as in the given statement "All the locks are keys. All the keys are bats. Some watches are bats" and option 1 is "Some bats are locks" which is not possible as there is no middle term in the given 1st and last statement if we relate these two.
Ravinder kumar said:
1 decade ago
When one solves syllogism problems by Euler circles then a conclusion is true only if it is true in all possible diagrams i.e if a conclusion is not true in any one of Euler circle then it does not follow. Some watches are keys is not true in figure 1 so it does not follows.
Prashanth said:
8 years ago
I am not sure weather it is correct or not. But what I have understood observing all the problems. We use third possibility diagram when all the statements are having only SOME without having ALL. We use only first Diagram when one of the statements Starts with ALL.
Shubham malik said:
8 years ago
When the terms are more than two we apply some another method. First of all the basic Venn diagram of the statement that totally satisfies it. Then we enlarge it as all L, K, B in one circle and another by BW. So according to this, 1 and 3 should be true.
Harish said:
1 decade ago
I understand the three venn diagram but as per diagram-1 answer b is correct but if we use another diagram then we get another option also so how can we eliminate the another option or how can we take decision that which diagram is correct?
Rupchand said:
6 years ago
From 2nd premises we can write Some bats are keys. And in 3rd premises.
Some watches are bats. Then we conclude Some watches are keys.
So, Option A is correct. Because statement 1 and 2 is correct.
Some watches are bats. Then we conclude Some watches are keys.
So, Option A is correct. Because statement 1 and 2 is correct.
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