A, B, C, D, and E are sitting in a row.
1. C is between B and D.
2. A is to the left of B but right of E.
Who is sitting at the center?
Explanation
Logical Arrangement
1. Analyze the first clue:
C is between B and D. This gives us two possible sub-arrangements:
2. Analyze the second clue:
A is to the left of B but to the right of E. This establishes a fixed order for these three:
Mathematically, this can be written as the sequence: (E,A,B).
3. Combining the clues:
Since the second clue fixes B to the right of A, we must use Case 1 from the first clue to ensure B has space to its left.
Merging (E,A,B) with (B,C,D):
Final Position Mapping
The final sequence from left to right is:
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Extreme Left: E
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Second Left: A
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Center: B
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Second Right: C
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Extreme Right: D
Conclusion
The person sitting at the center is determined by the position n=3 in a set of 5:
Center=Position (25+1)=3
Answer: B is sitting at the center.