IBPS RRBs Officer Scale I and II 12 Se 2015 Paper

(27-28) :
Some ratios are percent.
All percent are fractions.
I + A ⇒ I-type of Conclusion
“Some ratios are fractions.” (P)
All percent are fractions.
No fraction is a section.
A + E ⇒ E-type of Conclusion
“No percent is a section.” (Q)
Some ratios are fractions.
No fraction is a section.
I + E ⇒ O-type of Conclusion
“Some ratios are not sections.” (R)
27. (1) Conclusion I is the Converse of the Conclusion (Q). Venn diagrams of “Some ratios are fractions”:

Diagram III supports the Conclusion II.