Test Index

SBI PO 28 April 2013 Papers

Directions (31-35) :

In each of the questions below, two/three statements are given followed by conclusions/group of conclusions numbered I and II. You have to assume all the statements to be true even if they seem to be at variance from the commonly known facts and then decide which of the given two conclusions logically follows from the information given in the statements.

Give answer (1) if only conclusion I follows

Give answer (2) if only conclusion II follows

Give answer (3) if either I or II follows

Give answer (4) if neither I nor II follows

Give answer (5) if both I and II follow

Directions (31-32) :

Statements :

Some squares are circles.

No circle is a triangle.

No line is a square.

Question : 31 of 200

Marks: +1, -0

Conclusions :

I. All squares can never be triangles.

II. Some lines are circles.

Validate

Solution:

(31-35)

(i) All songs are poems →Universal Affirmative (A-type).

(ii) Some squares are circles →Particular Affirmative (I-type).

(iii) No circle is a triangle →Universal Negative (E-type).

(iv) Some circles are not triangles® Particular Negative (O-type).

(31-32) :

Some squares are circles

No circle is a triangle.

I + E ⇒ O-type of Conclusion

“Some squares are not triangles”. (P)

No line is a square.

Some squares are circles.

E + I ⇒

O_1

-type of Conclusion

“Some circles are not lines.” (Q)

The Conclusion (P) does notimply that “All squares can neverbe triangles”.

Some squares are nottriangles.

It implies, that some squaresare triangles.

It implies that some parts ofsquares are outside the limitof triangles.

Or, “All triangles are squares”.

No square is triangle.

Now, take Conclusion (Q).

It implies that some circles arelines.

It implies that some parts ofcircles are outside the limit oflines.

or, “All lines are circles”.

No circle is line.

This diagram contradicts

Conclusion II.

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