Question 1

Seven boxes are stacked vertically. Box T is 3 positions below Box V. Box S is immediately above Box U. Box W is at position 7 (top). Box T is at position 2. Which box is at position 4?

Accepted Answer

Given: T at position 2, V is 3 positions above T (so V at position 5), S immediately above U, W at position 7. Remaining boxes: S, U, X for positions 1, 3, 4, 6. S-U consecutive: options are U(1)-S(2) [T is at 2, invalid], U(3)-S(4), U(4)-S(5) [V is at 5, invalid], U(6)-S(7) [W is at 7, invalid]. Only valid: U(3)-S(4). Remaining box X goes to position 1 or 6. Arrangement: X(1), T(2), U(3), S(4), V(5), ?(6), W(7). Position 6 must be the remaining box. Position 4 is S.

Question 2

Five boxes labeled A, B, C, D, and E are stacked vertically from bottom to top. Box C is placed immediately above Box A. Box E is at the top. Box B is placed immediately below Box D. Which box is at the bottom?

Accepted Answer

Using the constraints: C is directly above A (A-C consecutive), E is at top (position 5), B is directly below D (B-D consecutive). Since E is at position 5, we have 4 remaining positions. A-C must be consecutive, B-D must be consecutive. If A is at position 1, C is at position 2. Then B-D must occupy positions 3-4. This gives: A(1), C(2), B(3), D(4), E(5). Therefore, A is at the bottom.

Question 3

Six boxes are arranged in a stack from bottom (position 1) to top (position 6). Box P is 2 positions above Box M. Box N is immediately above Box L. Box Q is at position 3. Box R is at position 1. Which box is at position 5?

Accepted Answer

Given: R at position 1, Q at position 3, P is 2 positions above M, N is immediately above L. Remaining boxes: M, N, L, P for positions 2, 4, 5, 6. If P is 2 positions above M: either M(2)-P(4) or M(4)-P(6). N is immediately above L: either L(2)-N(3) [but Q is at 3, invalid], L(4)-N(5), or L(5)-N(6). Testing M(4)-P(6) and L(4)-N(5): conflicts at position 4. Testing M(2)-P(4) and L(5)-N(6): R(1), M(2), Q(3), P(4), L(5), N(6). Position 5 is L.

Question 4

Eight boxes labeled 1 through 8 are stacked from bottom to top. Box 3 is immediately below Box 6. Box 5 is 2 positions above Box 2. Box 8 is at the top. Box 1 is at the bottom. Which box is at position 4?

Accepted Answer

Given: Box 1 at position 1 (bottom), Box 8 at position 8 (top), Box 3 immediately below Box 6 (consecutive), Box 5 is 2 positions above Box 2. Remaining boxes: 2, 3, 4, 5, 6, 7 for positions 2-7. Box 5 is 2 positions above Box 2: options are 2(2)-5(4), 2(3)-5(5), 2(4)-5(6), 2(5)-5(7). Box 3 immediately below Box 6: options are 3(2)-6(3), 3(3)-6(4), 3(4)-6(5), 3(5)-6(6), 3(6)-6(7). Testing 2(2)-5(4) and 3(3)-6(4): conflict at position 4. Testing 2(2)-5(4) and 3(5)-6(6): 1(1), 2(2), ?(3), 5(4), 3(5), 6(6), 7(7), 8(8). Position 3 is 4, position 7 is 7. Arrangement: 1, 2, 4, 5, 3, 6, 7, 8. Position 4 is 5.

Question 5

Seven boxes labeled A, B, C, D, E, F, and G are stacked in a single vertical stack from bottom to top. The following conditions must be satisfied:

1. Box C is exactly 2 positions above Box A.
2. Box E is immediately above Box B.
3. Box D is not at the top or bottom.
4. Box F is above Box D but below Box G.
5. Box G is at the top.
6. Box A is not at the bottom.

Which box is at position 4 (counting from bottom to top)?

Accepted Answer

This is a constraint-satisfaction stacking puzzle requiring systematic elimination and logical deduction to determine the unique arrangement.

SBI PO Box / Stack Puzzle

SBI PO Box / Stack Puzzle — Past Exam Questions

Box / Stack Puzzle— Rules & Concept

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Exam-Specific Tips

60-Second Revision — Box / Stack Puzzle