Verbal Reasoning - Syllogism - Discussion

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.

I too can't understand.

By rule we can say that option 4 is correct but why this either (2) or (3).

Ans is 1, 4 and 3 so either 2 or 3.

Can we have any other easy way to solve this? if yes. Please tell.

By the rule that has been followed inthe previous sections, only option 1 and 4 is correct. Then why its coming to 2 or 3 as we have to conclude from all possible venn diagrams. So only option 1 and 4 is correct.

Why either 2 or 3? Please explain.

Latest and easiest method to solve any syllogism problems is Raval's notation.Just note down statements in Raval's notation and deduce the conclusions at a simple glance.Here statements are K - S, S - St, StSt - P conclusion 1 P - St is correct by reverse reading of StSt - P,conclusion 2 and conclusion 3 forms a complimentary pair so either of them must be true, conclusion 4 S - K is simply reverse of statement K - S

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.

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