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If five friends A, B, C, D, and E are sitting in a circle, and A is not next to
Practice Questions
Q1
If five friends A, B, C, D, and E are sitting in a circle, and A is not next to B, who can be seated next to A?
C
D
B
E
Questions & Step-by-Step Solutions
If five friends A, B, C, D, and E are sitting in a circle, and A is not next to B, who can be seated next to A?
Steps
Concepts
Step 1: Understand that A cannot sit next to B.
Step 2: Visualize the circle with five friends: A, B, C, D, and E.
Step 3: Identify the positions around A. A has two sides: left and right.
Step 4: Since A cannot be next to B, B cannot occupy either side of A.
Step 5: This means that the only friends who can sit next to A are C, D, or E.
Step 6: Conclude that C, D, or E can be seated next to A.
Circular Arrangement
– Understanding how to arrange individuals in a circle while adhering to specific constraints.
Exclusion Principle
– Applying the rule that certain individuals cannot be adjacent to each other.
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