RBI Grade B Officers 2017 jun Paper

(3)No performance is an experiment.
Some experiments are blueprints.
E + I ⇒ O1-type of Conclusion“Some blueprints are not performances.”
Some experiments are blueprints.
No blueprint is a table.
I + E ⇒ O-type of Conclusion“Some experiments are not tables.”
This is the Conclusion (1).
Some experiments are blueprints.
All blueprints are chairs.
I + A ⇒ I-type of Conclusion“Some experiments are chairs.”
This is the Conclusion (2).
No table is a blueprint.
All blueprints are chairs.
E + A ⇒ O1-type of Conclusion“Some chairs are not tables.”
Venn diagrams of “Some blueprintsare not performances” :


Venn diagrams of “All blueprintsare chairs” :
After combining Venn diagramsII and V, we get :
From the Venn diagram VI, itis clear that Conclusion (3)does not follow.Venn diagrams of “Some experimentsare chairs” :

From the Venn diagram VI, itis clear that Conclusion (3)does not follow.Venn diagrams of “Some experimentsare chairs” :
Venn diagrams of “Some chairsare not tables” :

After combining Venn diagramsVIII and XI, we get :
From the Venn diagram XIII,it is clear that Conclusion (4)follows.From the Venn diagram II, itis clear that Conclusion (5) istrue.