These questions are based on the following information....

These questions are based on the following information. Seven girls $-\mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D}, \mathrm{E}, \mathrm{F}$ and $\mathrm{G}$ sit in a row facing north, not necessarily in the same order. It is also known that, I. Two girls sit in between $\mathrm{B}$ and $\mathrm{F}$. II. Three girls sit in between $\mathrm{C}$ and $\mathrm{G}$. III. Four girls sit in between $\mathrm{A}$ and $\mathrm{D}$. If $\mathrm{F}$ and $\mathrm{G}$ sit on either sides of $\mathrm{E}$ then who sits at the right end of the row? (A) $\mathrm{A}$ (B) $\mathrm{C}$ (C) $\mathrm{D}$ (D) Cannot be determined

These questions are based on the following information. Seven girls $-\mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D}, \mathrm{E}, \mathrm{F}$ and $\mathrm{G}$ sit in a row facing
north, not necessarily in the same order. It is also known that,
I. Two girls sit in between $\mathrm{B}$ and $\mathrm{F}$.
II. Three girls sit in between $\mathrm{C}$ and $\mathrm{G}$.
III. Four girls sit in between $\mathrm{A}$ and $\mathrm{D}$.
If $\mathrm{F}$ and $\mathrm{G}$ sit on either sides of $\mathrm{E}$ then who sits at the right end of the row?
(A) $\mathrm{A}$
(B) $\mathrm{C}$
(C) $\mathrm{D}$
(D) Cannot be determined

Key Concepts

Logical Deduction

Logical deduction is the process of reasoning through the constraints and progressively narrowing down the possibilities. In this type of problem, it involves systematically applying the clues, eliminating inconsistent arrangements, and inferring the final configuration. It is essential for solving puzzles that require multiple levels of reasoning.

Constraint Satisfaction

This refers to the process of assigning values to variables (here, positions of the girls) while meeting all given restrictions. Conditions specifying the number of people between individuals translate into positional constraints that must be simultaneously satisfied, which is common in puzzles and in solving problems in artificial intelligence.

Seating Arrangements

This concept involves arranging a set of individuals or items in a specific order, often in a row or around a table. The arrangement must adhere to given conditions or constraints, requiring the solver to determine positions relative to each other. It is a fundamental concept in combinatorial and logic puzzles.

Relative Positioning

This concept deals with determining the order of individuals based on their positions relative to one another. Instead of absolute positioning, the puzzle uses clues such as 'X sits to the left of Y' or 'there are N individuals between X and Y' to establish a sequence, making it a key idea in logic-based puzzles.

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