gmatrant Master | Next Rank: 500 Posts View User Profile Posts: 416 Joined: Wed Oct 03, 2007 9:08 am Thanked: 10 times Followed by:1 members Combination - Letter Box by gmatrant » Sat Oct 13, 2007 3:13 am In how many ways can 8 letters be posted into 5 letter boxes? 1)8P5 2)5^8 3)8^5 4)5^6 Answer : [spoiler](2)[/spoiler] Top Quote