Question 1
Five persons B, A, E, D and C are sitting in a row facing North.
B sits at one of the extreme ends. A sits second to the right of B.
E sits immediately to the left of A. D is not at any extreme end.
Who sits at the other extreme end?
Solution Approach:
Step 1: Create the basic diagram
Draw 5 positions in a row, all facing North (β):
Position: 1 2 3 4 5
Step 2: Apply direct conditions
- B sits at one extreme end β Place B at position 1
- A sits second to the right of B β A at position 3
- E sits immediately to the left of A β E at position 2
Position: B E A _ _
Step 3: Apply constraint conditions
- D is not at any extreme end β remaining positions are 4 and 5; D cannot be at 5, so D at position 4
- Only C remains β C at position 5
Final Arrangement (all facing North β):
Position: B E A D C
Verification:
β B at extreme end (pos 1)
β A second to the right of B (pos 3)
β E immediately to the left of A (pos 2)
β D not at extreme end (pos 4)
Answer: C sits at the other extreme end (position 5).
Step 1: Create the basic diagram
Draw 5 positions in a row, all facing North (β):
Position: 1 2 3 4 5
Step 2: Apply direct conditions
- B sits at one extreme end β Place B at position 1
- A sits second to the right of B β A at position 3
- E sits immediately to the left of A β E at position 2
Position: B E A _ _
Step 3: Apply constraint conditions
- D is not at any extreme end β remaining positions are 4 and 5; D cannot be at 5, so D at position 4
- Only C remains β C at position 5
Final Arrangement (all facing North β):
Position: B E A D C
Verification:
β B at extreme end (pos 1)
β A second to the right of B (pos 3)
β E immediately to the left of A (pos 2)
β D not at extreme end (pos 4)
Answer: C sits at the other extreme end (position 5).