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Question

Seven boxes E, F, G, H, S, T and U are kept one over the other but not necessarily in the same order. Only three boxes are kept above G. Only one box is kept between E and G. Only three boxes are kept between E and U. U is kept at some place above G. T is kept immediately below U. S is kept at one of the places above F. H is not kept immediately above or below E. Which box is kept at the lowermost position?

The correct answer is
F

Analyzing the Box Arrangement Logic Puzzle

This problem requires us to determine the order of seven boxes stacked vertically based on a set of given conditions and then identify the box at the bottom.

Step-by-Step Deduction

Let's represent the positions from top to bottom as 1, 2, 3, 4, 5, 6, 7.

  • Condition 1: "Only three boxes are kept above G." This means G must be in the 4th position.
    Position 1:_
    Position 2:_
    Position 3:_
    Position 4:G
    Position 5:_
    Position 6:_
    Position 7:_

  • Condition 2: "Only one box is kept between E and G." Since G is at position 4, E can be at position 2 (with box 3 in between) or position 6 (with box 5 in between).
  • Condition 3: "U is kept at some place above G." This means U must be in position 1, 2, or 3.
  • Condition 4: "T is kept immediately below U." This implies T's position is U's position + 1.
    • If U is at 1, T is at 2.
    • If U is at 2, T is at 3.
    • If U is at 3, T is at 4. This is impossible because G is already at position 4.
    So, the possible pairs for (U, T) are (1, 2) or (2, 3).
  • Combining Conditions: Let's revisit the possible positions for E (2 or 6) and the possible pairs for (U, T) {(1, 2), (2, 3)}.
    • If E is at position 2, then U cannot be at 1 (T would be at 2, conflicting with E) or U cannot be at 2 (conflicting with E). This scenario leads to contradictions.
    • Therefore, E must be at position 6.
      Position 1:_
      Position 2:_
      Position 3:_
      Position 4:G
      Position 5:_
      Position 6:E
      Position 7:_

  • Condition 5: "Only three boxes are kept between E and U." E is at position 6. U must be above G (position 1, 2, or 3).
    • If U is at 1, there are 4 boxes (2, 3, 4, 5) between U and E. Incorrect.
    • If U is at 2, there are 3 boxes (3, 4, 5) between U and E. Correct.
    • If U is at 3, there are 2 boxes (4, 5) between U and E. Incorrect.
    So, U must be at position 2.
  • Position of T: Since T is immediately below U (U is at 2), T must be at position 3.
    Position 1:_
    Position 2:U
    Position 3:T
    Position 4:G
    Position 5:_
    Position 6:E
    Position 7:_

  • Condition 6: "H is not kept immediately above or below E." E is at position 6. H cannot be at position 5 or 7. The available positions are 1, 5, 7. Since H cannot be at 5 or 7, H must be at position 1.
    Position 1:H
    Position 2:U
    Position 3:T
    Position 4:G
    Position 5:_
    Position 6:E
    Position 7:_

  • Final Placement: The remaining boxes are S and F. The remaining positions are 5 and 7.
    • Condition 7: "S is kept at one of the places above F."
    To satisfy this, S must be placed at position 5, and F must be placed at the lowermost position, 7.
    Position 1:H
    Position 2:U
    Position 3:T
    Position 4:G
    Position 5:S
    Position 6:E
    Position 7:F

Conclusion of Arrangement

The final arrangement of the boxes from top (1) to bottom (7) is:

  1. H
  2. U
  3. T
  4. G
  5. S
  6. E
  7. F

Therefore, the box kept at the lowermost position (position 7) is F.

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Important Questions from Seating Arrangement (Notes)

  1. Read the directions carefully and give the answer from the given options. 

    P, Q, R, S, T, K, L, M and N are sitting around a circle facing the centre. 

    K is $4^{th}$ to the right of P and P is $3^{rd}$ to the right of Q. 

    N is $4^{th}$ to the left of Q and $3^{rd}$ to the right of S. 

    R is $2^{nd}$ to the right of M and M is the immediate neighbour of P. 

    T is $2^{nd}$ to the left of L. 

    Who is to the immediate left of K?

  2. Seven people, F, J, M, L, R, V and X, are sitting in a row, facing north.
    Only three people sit to the left of X. Only M sits to the right of R. Only three people sit between R and V. J sits at some place to the left of L but at some place to the right of F.
    How many people sit to the left of V?

  3. Seven boxes, A, B, C, D, E, F and G, are kept one over the other but not necessarily in the same order. Only A is kept above F. Only D is kept between F and C. Only E is kept below B. How many boxes are kept below C?

  4. P, Q, R, S, T, U and V are sitting in a row, facing north. No one sits to the left of U. Only four people sit between U and R. Only three people sit to the right of V. P sits to the immediate left of S. Q is not an immediate neighbour of V. How many people sit between P and T?

  5. Six people, B, C, D, I, J and K, are sitting around a circular table facing the centre. Only two people sit between B and I when counted from the right of I. K sits to the immediate left of J. I sits to the immediate right of C. Who among the following are the immediate neighbours of D?

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