Seating Arrangement Logic Puzzle Explained
This question involves a logical deduction puzzle about the seating arrangement of seven people (A, B, C, D, E, F, and G) in a straight row facing north. We need to determine the exact seating order based on the given clues to find out who sits between B and A.
Decoding the Seating Clues
Let's break down the clues step-by-step to determine the seating arrangement:
- There are 7 positions in the row. Since they face North, 'left' means towards the beginning of the row and 'right' means towards the end.
- Clue 1: "D sits to the extreme right." This places D in the 7th position.
_ _ _ _ _ _ D - Clue 2: "Only one person sits between C and D." Since D is in position 7, C must be in position 5 to have one person (position 6) between them.
_ _ _ _ C _ D - Clue 3: "A sits third to the left of D." Counting three positions to the left of D (position 7): position 6 (1st left), position 5 (2nd left), position 4 (3rd left). So, A is in position 4.
_ _ _ A C _ D - Clue 4: "Only two people sit between A and F." A is in position 4.
- If F were to the right of A, the positions would be 5 and 6. However, position 5 is occupied by C and position 7 by D. So, F cannot be to the right of A with two people in between.
- Therefore, F must be to the left of A. The two positions between A (position 4) and F would be positions 3 and 2. This places F in position 1.
F _ _ A C _ D
- Clue 5: "B is an immediate neighbour of F." Since F is in position 1, its only neighbour is position 2. Thus, B is in position 2.
F B _ A C _ D - Clue 6: The remaining people are E and G. The remaining positions are 3 and 6.
F B _ A C _ D - Clue 7: "G is not an immediate neighbour of A." A is in position 4. Its immediate neighbours are positions 3 and 5. Position 5 is occupied by C. Therefore, G cannot be in position 3. This means G must be in position 6.
F B _ A C G D - The only person left is E, and the only position left is 3. So, E is in position 3.
F B E A C G D
Final Seating Arrangement
The final arrangement of the seven people from left to right is F, B, E, A, C, G, D.
| Position 1 | Position 2 | Position 3 | Position 4 | Position 5 | Position 6 | Position 7 |
| F | B | E | A | C | G | D |
Determining Who Sits Between B and A
Looking at the final arrangement:
- B is in position 2.
- A is in position 4.
- The person sitting between position 2 (B) and position 4 (A) is in position 3.
- The person in position 3 is E.
Therefore, E sits between B and A.
Important Questions from Seating arrangement
Seven people A, B, C, D, E, F and G are sitting around a circular table, facing the centre (but not necessarily in the same order). A is sitting second to the right of E. Only one person is sitting between D and A. B is sitting third to the right of G. F is an immediate neighbour of B. How many people are sitting between D and E when counted from the left of E?
Seven people A, B, C, D, E, F, and G are sitting around a circular table, facing the center (but not necessarily in the same order). C is sitting to the immediate right of E. D is sitting third to the left of C. A is the immediate neighbor of B and C. F is not the immediate neighbor of E. What is the position of G with respect to A?
P, Q, R, S, T, U, V and W are sitting around a circular table facing the centre (but not necessarily in the same order).
P is sitting to the immediate right of V and third to the left of U.
S is sitting fourth to the right of Q, who is not an immediate neighbour of P and T.
Q is sitting to the second right of U.
R is sitting to the immediate right of Q and second to the left of P.
How many people are sitting between R and T when counted from the left of T?
Rajan, Pragyan, Kamal, Sachin, Ashok, Narendra, and Laksh are sitting around a circular table, facing the centre (but not necessarily in the same order).
Rajan sits 3rd to the right of Narendra. Kamal sits 2nd to the right of Rajan.
Ashok is an immediate neighbour of Narendra. Pragyan sits to the immediate right of Sachin.
Who is sitting 3rd to the left of Narendra?
P got married 15 years ago. Today her age is 13⁄5 times her age at the time of her marriage. At present her son’s age is 1⁄5 of her age. What was her son’s age 4 years ago as a fraction of P’s age at that time?
