mason lives in highland and works in ridgeview there are 5 roads from highland to ridgrview and one of the roads is a one-way street he wants to find the number of different round trips he can take to and from work he plans to drives on each street no more than 3time during all of his round trips . how many different round trips can mason take to and from work ?

Question

anonymous · Answer

the one way street, in which way is it usable?

anonymous · Answer

I'll assume it's one way from highland to ridgeview.

So he has 5 options. When he returns he has 4 options left. -> so if there are no other restrictions he has 5.4=20 different combinations.

anonymous · Answer

Do you have to calculate it for a given time? A week? A month? A year? Or just the round trip of the day.