1 Answers

Option 3 : S

Seven friends - M, N, O, P, Q, R and S live on seven different floors of the same building, having floors in such a manner that the ground floor is numbered 1, the floor above it number 2, and so on till the topmost floor is numbered 7.

1. M lives on floor number 1.

2. Q lives immediately above M.

3. Only four friends live between the floors of Q and N.

Floor

Person

7

N

6

 

5

 

4

 

3

 

2

Q

1

M

4. Only three friends live between the floors of P and M.

Floor

Person

7

N

6

 

5

P

4

 

3

 

2

Q

1

M

5. R lives immediately below O.

Floor

Person

7

N

6

 

5

P

4

O

3

R

2

Q

1

M

Only one person S is left and only one floor 6 is vacant.

So, S will occupy the vacant position on 6th floor.

The final arrangement will be as shown below:

Floor

Person

7

N

6

S

5

P

4

O

3

R

2

Q

1

M

S lives on the sixth floor.

Hence, ‘S’ is the correct answer.

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