Distinguishable Permutation

1. How many different ways of placing 4 balls in a row if we have 3 red and 1 blue?

• 4

• 12

• 20

• 24

2. Which of the following is the number of distinguishable permutations of the AAABBC

• 30

• 60

• 80

• 120

3. How many ways can you arrange the letters SCHOOL?

• 120

• 280

• 300

• 360

4. In how many ways can two blue marbles and four red marbles be arrange in a row?

• 30

• 20

• 15

• 5

5. In how many different ways can five red balls and two white balls

• 42

• 21

• 7

• 5