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Question

A, G, H, P, S and Y live on six different floors of the same building. The lowermost floor in the building is numbered 1, the floor above it is numbered 2 and so on, till the topmost floor, which is numbered 6.
Only two people live between Y and H. Only two people live between G and S. No one lives above G. H lives below S but above P.
How many people live below A?

This question was previously asked in
RRB ALP 2025 CBT 2 Mechanic Motor Vehicle Question Paper (28-Jul-2026) (Shift 1)
The correct answer is
Three

Logic Puzzle: People on Six Floors

The problem requires determining the arrangement of six people (A, G, H, P, S, Y) on six floors (1 to 6) based on given clues and then finding how many people live below person A.

Deduction of Floor Arrangement

Use the given conditions step-by-step:

  • Condition 3: "No one lives above G." This places G on the topmost floor, Floor 6.
    • G = Floor 6
  • Condition 2: "Only two people live between G and S." Since G is on Floor 6, the arrangement must be G (6), Floor 5, Floor 4, S (3).
    • S = Floor 3
  • Condition 4: "H lives below S but above P." This means the order is S > H > P in terms of floor numbers. With S on Floor 3, H must be on Floor 2, and P on Floor 1.
    • H = Floor 2
    • P = Floor 1
  • Condition 1: "Only two people live between Y and H." H is on Floor 2. The floors between Y and H must be two distinct floors.
    • If Y were below H, there are no two floors between H (Floor 2) and any floor below it (Floor 1 is occupied by P).
    • Therefore, Y must be above H. The floors available above H are 3, 4, 5. Floor 3 is occupied by S.
    • If Y is on Floor 5, the floors between Y (5) and H (2) are Floor 4 and Floor 3. This satisfies the condition of two people between them.
    • Y = Floor 5
  • Placement of A: The only person left is A, and the only floor left is Floor 4.
    • A = Floor 4

Final Floor Arrangement

The determined arrangement from top (6) to bottom (1) is:

Floor Person
6 G
5 Y
4 A
3 S
2 H
1 P

Answering the Question

The question asks: "How many people live below A?".

  • Person A lives on Floor 4.
  • The floors below Floor 4 are Floor 3, Floor 2, and Floor 1.
  • The people living on these floors are S, H, and P respectively.
  • Therefore, there are 3 people living below A.

Final Answer: Three people live below A.

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Important Questions from Puzzle

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  2. What should come in place of the question mark (?) in the given series? 
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