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Seven boxes, A, B, E, F, L, M and P, are kept one over the other but not necessarily in the same order. M is kept second from the bottom. Only three boxes are kept between M and B. P is kept at one of the positions below M. Only E is kept between B and F. A is kept at one of the positions above B. How many boxes are kept between L and P?
One
Three
Two
Four
One
Fix the anchor points: M is at 2nd from bottom, 3 boxes between M and B places B at 6th position, E is between B and F (5th or 7th).
Fix the anchor points: M is at 2nd from bottom, 3 boxes between M and B places B at 6th position, E is between B and F (5th or 7th).
Establish Base Positions
Given M is 2nd from bottom (Floor 2). 'Only three boxes between M and B' forces B to Floor 6 (3, 4, 5 are the gap).
Place E, F, and A
Only E is between B (F6) and F. This places F at F4 and E at F5. A is above B, so A is at F7. P is below M, so P is at F1. The remaining box L fills F3.
Calculate Distance
The order is 7:A, 6:B, 5:E, 4:F, 3:L, 2:M, 1:P. Between L (Floor 3) and P (Floor 1), only Box M (Floor 2) exists. Count = 1.
B: Two boxes is incorrect as M is the only one between them. C: Three is incorrect because only M sits between L and P. D: Four is incorrect based on the verified arrangement.
A is correct because, based on the arrangement (A, B, E, F, L, M, P), there is exactly one box (M) between L and P.
In floor-based puzzles, always fill the most constrained elements first (M and B) to narrow down possibilities quickly.