M, N, O, P, Y and Z live on six different floors of the same building. The lowermost floor
in the building is numbered 1, the floor above it, number 2 and so on till the topmost
floor is numbered 6. O lives on floor numbered 4. Only two people live between O and P.
Only M lives between O and N. Y lives immediately below O. Who lives on floor numbered 2?

Question

Question

This question was previously asked in

RRB NTPC Graduate Level CBT-I Official Paper (Held On: 06 Jun, 2025 Shift 2)

Answer 1

Let's denote the floors from 1 (lowermost) to 6 (topmost).

O lives on floor numbered 4.

Only two people live between O and P.

Since O is on floor 4, P can be on floor 1 (two people between O and P: floors 3 and 2) or floor 7 (which doesn't exist).

So, P must be on floor 1.

Only M lives between O and N.

Y lives immediately below O.

O is on floor 4, so Y lives on floor 3.

Since O is on floor 4, M must be on floor 5, and N must be on floor 6.

The only remaining person is Z, and the only remaining floor is 2.

So, Z lives on floor 2.

Based on our deductions, Z lives on floor numbered 2.

Hence, the correct answer is "Option 4".