Verbal Reasoning - Syllogism - Discussion

Can any one solve through other method?

Guys, my point of view by the rule if I and E statement having same element as same place it can be taken as complementary pair and we select either or option. Complementary pairs are i, o; a, o and i, e.

There should be a full proof method or one rule. Thinking this and this always confusion. Only conclusion 1 and 4 is as per confirm rule.

Its easy :

Option (1) & (4) follows no doubt about it, option (2) & (3) doesn't follow as per rules, so before quitting the question we must check whether there exist any COMPLEMENTARY PAIR (or) not.

SOME and NO forms a complementary pair with common words (STICKERS & KEYS), we can interchange the words because both SOME and NO are INTERCHANGEABLE. So we can write it as,

Some keys are stickers. No stickers are keys. [words (stickers) are same, so, either (2) or (3) follows].

How 3rd Venn diagram is possible to draw please explain?

We can't decide option 3 then how can you say either 2 or 3?

Why we have drawn 3rd venn diagram? all stickers are pens is covered by first 2 venn diagram.

Some keys are staplers. It means either 1 or 100 (all).

Keys may be stapler. Some staplers are stickers. Again it means either 1 or 100 (all) staplers are stickers. So we can say that all keys may be stickers. All the stickers are pens. So from above conclusion.

Either 1 or 100 (all) pen may be staplers. And either 0 or 100 (all).

Stickers may be key. So with statement 1 & 2, 3 statement is also right.

It can be explained easily with the help of venn diagram.

There should be proper method to solve such kinds of problems. Because these problems are very much important by exam point of view.

Only Conclusion 1 & 4 Follows but either 2 or 3 is incorrect.

As per the rule I can derive only two conclusion.

Some staplers are pens and some keys are staplers.

So conclusion we can conclude that 1. Some pens or staplers and 4. Some staplers are keys.