Seven persons A, B, C, D, E, F, and G live in a seven-floor building numbered from 1 (ground floor) to 7 (top floor). Each person likes a different co...
Question
Seven persons A, B, C, D, E, F, and G live in a seven-floor building numbered from 1 (ground floor) to 7 (top floor). Each person likes a different color: Green, Red, Violet, Purple, Black, Pink, and White. The following conditions apply:
- G lives on an even-numbered floor and is three floors above the person who likes Black.
- The number of persons living above the one who likes Purple is equal to the number of persons living below the one who likes Black.
- C lives two floors above the person who likes White, who lives on an odd-numbered floor.
- C does not like Black.
- B lives two floors above the person who likes Violet.
- The person who likes Green lives just above the person who likes Pink.
- More than three persons live between E and F, and F lives just above D.
Based on this information, how many floors are between the persons who like Red and Black?