I was thinking it may be 10!/5! but am not sure

I was thinking it may be 10!/5! but am not sure

c) Allowing for unlimited repeats, what is the probability if we selected a 7 letter arrangement at random that it would contain no repeated letters? d) How many 7 letter arrangements...

In how many ways can the letters of the word WINNIPEG be arranged if the letters W, P, and G must remain in the same order they appear in the word?

a rectangular table has 4 seats on one side and 3 seats on the opposite side. a family of 7 consist of 2 grandparents, 2 parents and 3 children are to be seated at the table. In how...

Two songs are chosen by both stations, but appear in different places on their lists. The rest of the songs chosen by each station are different. How many different ways could the radio stations have...

In this game they each get at least 1 point each turn. After 7 turns, the score is 11 to 8. How many different scores were possible after the 5th turn?

How many different arrangements are possible if Allen cannot be next to either Jennifer or Caitlyn and Daniel or Deena will always be on the far left?

I know the answer is 20 but i can't figure it out

The answer is 125 if that helps

I know that the answer 84, but I just can't seem to get that number

NON ACADEMIC QUESTION: Over the years I have struggled with a (social) math problem involving organising golfers in a travelling group so as to maximise playing combinations whilst minimising duplication...

I have been stuck on this for a while now

In how many ways can a committee consisting of 4 faculty members and 5 students be formed if there are 7 faculty members and 13 students eligible to serve...

I want to generate permutation of large number and also control the outputs. Forexample, permutation 10 numbers (1,2,3,4,5,6,7,8,9,0). Since the output will be large, I want to be able to put parameters...

Permutations in how many ways can five examinations be scheduled in a week so that no two examinations are scheduled on same day considering sunday as a holiday

The answer is 30 if that helps

The answer is 120 if that helps

Assume that there are 16 board members: 11 females, and 5 males including Neville. There are 3 tasks to be assigned. Note that assigning the same people different tasks constitutes a different assignment...

A family consists of a mother, a father, 2 girls and 2 boys. How many different ways can they be arranged in a line if the boys are together and the girls are not? I have no idea how...

Hi! Just as a follow up question that I don't understand (and if someone could explain how this works) 1) There are 2 red and 4 green identical marbles arranged in a line. How many different arrangements...