4 3 R 5 years 2 Q 1 3) Only TWO people LIVE between the floors on which Q and U live.4) The one whose age is 10 years lives below Q.5) The one whose age is 20 years lives on the TOPMOST floor. Floor Person Age 6 20 years 5 4 3 R 5 years 2 Q 1 10 years 6) Only two people live between the floors on which Q and U live. S does not live on an odd-numbered floor.7) S lives on a floor between U and Q and his age is 15 years. Floor Person Age 6 20 years 5 U 4 S 15 years 3 R 5 years 2 Q 1 10 years 8) U is 5 years elder than P.9) T does not live on the topmost floor.Therefore, P lives on the topmost floor, as U is 5 years elder than P, so U's age is 25 years. Floor Person Age 6 P 20 years 5 U 25 years 4 S 15 years 3 R 5 years 2 Q 1 T 10 years The one who lives just above T is 3 years elder than T.Floor Person Age 6 P 20 years 5 U 25 years 4 S 15 years 3 R 5 years 2 Q 13 years 1 T 10 yearsClearly, R lives on the floor between the floors on which Q and S live.