IBPS PO Mains 12 Oct 2025 Shift 1 Paper

Concept:Check each statement to see whether it gives a unique position for book $D$.Explanation:Statement II gives a definite arrangement.Only two books are below $A$, so $A$ is at the $4$th position from the top.One book is placed between $C$ and $A$, so $C$ is either at the $2$nd or the $6$th position.If $C$ is at the $2$nd position, then books above $C = 1$, so books below $F = 1$, which places $F$ at the $5$th position.The remaining positions $1, 3, 6$ would be occupied by $B, E, D$, and since $B$ is above $E$ and $E$ is above $D$, $D$ would be at the $6$th position.This contradicts the condition that $D$ is not at the bottommost position.Therefore, $C$ must be at the $6$th position.Then books above $C = 5$, so books below $F = 5$, giving $F$ at the $1$st position.Now, with $A$ at $4$, $C$ at $6$, and $F$ at $1$, the remaining positions $2, 3, 5$ must be $B, E, D$ in that order from top to bottom.So, $B$ is at $2$, $E$ is at $3$, and $D$ is at $5$.Thus, the final arrangement from top to bottom is $F, B, E, A, D, C$, and book $D$ is $5$th from the top.Statement I alone gives multiple possible arrangements, so it is not sufficient to fix the position of $D$.Answer:Data in statement II alone are sufficient to answer the question.Correct option: C.