Six people G, H, J, K, L and M live on different floors of a six-floor building (floor 1 is the lowest and floor 6 the topmost). J lives on the topmost floor. K lives on floor 1. Exactly one person lives between K and H. G lives immediately above H. M lives on an even-numbered floor. How many people live between M and L?

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Accepted Answer

Two. Arrangement (floor 1 → 6): K, M, H, G, L, J. (H must be on floor 3, G on 4; of the free floors 2 and 5, M takes the even one, 2, and L gets 5.) M is on floor 2 and L on floor 5, so H and G (two people) live between them.

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