Question

Eight persons are standing in two parallel rows, such that four persons stand in row-X facing north and four stand in row-Y facing south. In this way, person in one row faces the person of other row. Who faces C?
Statement I: A is second to the right of B, who is an immediate neighbor of D. E stands in row-Y and faces G, who is immediate left of H. C is on the immediate right of the one who faces A.
Statement II: F stands at the left end in row-Y. A is facing I, who is second to the left of E. A stands in row-X. C and F are the immediate neighbors of I.
A.If the data in statement I alone is sufficient to answer the question, while the data in statement II alone is not sufficient to answer the question.
B. If the data in statement II alone is sufficient to answer the question, while the data in statement I alone is not sufficient to answer the question.
C.if the data either in statement I alone or in statement II alone is sufficient to answer the question.
D.If the data in both statement I and II together are not sufficient to answer the question.

• A. If the data in statement I alone is sufficient to answer the question, while the data in statement II alone is not sufficient to answer the question.
• B. If the data in statement II alone is sufficient to answer the question, while the data in statement I alone is not sufficient to answer the question.
• C. if the data either in statement I alone or in statement II alone is sufficient to answer the question.
• D. If the data in both statement I and II together are not sufficient to answer the question.

Hint:

In two-row facing arrangement problems, always fix the facing directions first, then apply relative left/right placement rules step-by-step. This prevents placement errors and speeds up deductions.

Answer 1

The Correct Option is C

Step 1: Understanding the setup
We have two rows:
- Row-X (facing north) → persons facing row-Y.
- Row-Y (facing south) → persons facing row-X.
Facing direction is important because left/right are always determined relative to the person’s own facing.
Step 2: Analyzing Statement I
- A is second to the right of B in row-X. This fixes partial order of A and B.
- B is an immediate neighbor of D, so D’s position is adjacent to B.
- E in row-Y faces G in row-X. G is immediate left of H in row-X.
- C is immediate right of the one who faces A.
Using facing rules and relative positions, we can assign specific seats step-by-step, deducing exactly who faces C.
Since all relationships are given clearly, we can uniquely find C’s facing partner.
\(⇒\) Statement I alone is sufficient.
Step 3: Analyzing Statement II
- F is at the left end of row-Y.
- A in row-X faces I in row-Y, and I is second to the left of E in row-Y.
- C and F are immediate neighbors of I.
Since we know F’s end position and the adjacency pattern around I, we can again place all relevant persons and deduce who faces C without ambiguity.
\(⇒\) Statement II alone is sufficient.
Step 4: Comparing sufficiency
Either statement I alone or statement II alone is sufficient to answer the question. \[ \boxed{\text{C}} \]