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| 1. |
the number of ways for 3 persons to stay in room number 1,2,3,4,5,6,7,8 such that no two persons stay in consecutive room numbers (no person could stay in same room number) is |
| Answer» the number of ways for 3 persons to stay in room number 1,2,3,4,5,6,7,8 such that no two persons stay in consecutive room numbers (no person could stay in same room number) is | |