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Question

Seven boxes F, G, H, M, N, O and P are kept one over the other but not necessarily in the same order. Only two boxes are kept below O. Only one box is kept above N. Only one box is kept between N and H. G is kept immediately above M. F is kept at some place below P. How many boxes are kept between P and G?

The correct answer is
Four

Boxes Puzzle: Analyzing the Arrangement

The problem asks us to determine the number of boxes situated between box P and box G, given a set of clues about the stacking order of $7$ boxes (F, G, H, M, N, O, P).

Deducing Box Positions

We will deduce the order from top (position 1) to bottom (position 7) using the provided clues.

Position of O

Clue: "Only $2$ boxes are kept below O."

This implies O must be at the 5th position. The positions below O are 6 and 7.

Current Stack: [_, _, _, _, O, _, _]

Position of N

Clue: "Only one box is kept above N."

This means N is at the 2nd position. Position 1 is above N.

Current Stack: [_, N, _, _, O, _, _]

Position of H

Clue: "Only one box is kept between N and H."

With N at position 2, the only possible position for H to have exactly one box between them is position 4 (with position 3 being the box in between).

Current Stack: [_, N, _, H, O, _, _]

Placement of G and M

Clue: "G is kept immediately above M."

The pair 'GM' needs two consecutive empty slots. Checking the available slots: positions 1, 3, 6, 7 are empty. The only consecutive pair is (6, 7).

Therefore, G is at position 6, and M is at position 7.

Current Stack: [_, N, _, H, O, G, M]

Placement of P and F

Clue: "F is kept at some place below P."

The remaining positions are 1 and 3. The remaining boxes are P and F. To satisfy the condition that F is below P, P must be placed at position 1, and F at position 3.

Final Arrangement

The complete order of boxes from top (1) to bottom (7) is:

  1. P
  2. N
  3. F
  4. H
  5. O
  6. G
  7. M

Counting Boxes Between P and G

We need to find the number of boxes between P (position 1) and G (position 6).

The boxes located between P and G are N, F, H, and O.

The count is $4$.

Therefore, there are 4 boxes kept between P and G.

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Important Questions from Box Puzzle

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

  2. Seven boxes F, G, H, I, K, L, and O are kept one over the other but not necessarily in the same order. Only three boxes are kept below H. Only two boxes are kept between H and O. Only L is kept above G. F is kept at some place below I and at some place above K. Which box is kept at second position from the bottom?

  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 four boxes are kept between A and E. Only G is kept above A. Only two boxes are kept between B and C. D is kept immediately above F. C is not kept immediately above D. How many boxes are kept above D?
  4. Seven boxes A, B, C, D, E, F and G are kept one over the other but not necessarily in the same order. Only three boxes are kept above A. Only one box is kept between F and A. Only three boxes are kept between F and E. E is kept at some place above A. B is kept immediately below E. G is kept at one of the places above D. C is not kept immediately above or below F. How many boxes are kept above B?
  5. Seven boxes A, B, C, D, E, F and G are kept one over the other but not necessarily in the same order. Only two boxes are kept between G and A. Only F is kept above B. No box is kept below A. E is kept at some place below C but at some place above D. How many boxes are kept between D and F?
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