1. How many ways can a group of 7 adults and 4 children stand in a line if no two children are allowed to stand next to each other?
2. How many numbers between 1 and 100 are multiples of 2, 3, or 6?
3. How many permutations of abcde are there in which the first character is a, b, or c and the last character is c, d, or e?
4. How many distinct pairs of integers from 1 to 101 inclusive have a sum that is even?

Answer rating: 100% (QA)

Sure Here are solutions to the four problems you provided 1 There are 7 5040 ways for the group of 7 adults to stand in a line Since no two children a... View the full answer