A group of 6 people are to be seated in a row. In how many ways can they be seated if 2 particular people refuse to sit next to each other?
Q1. A group of 6 people are to be seated in a row. In how many ways can they be seated if 2 particular people refuse to sit next to each other?
Answer: 480
Explanation: Total ways to seat 6 people = 6! = 720. Ways with 2 people together = 2 * 5! = 240. So, ways with 2 people not together = 720 - 240 = 480.