q25 p&c

[Saumyojit]

How to approach?

 

[Dr.Peterson]

View attachment 28950

How to approach?

Any way you want to!

Please make an attempt. This is easy to do by permutations, or there are other ways. But you won't learn without doing.

 

[pka]

Do you know how many ways there are to arrange the string [imath]WWWWWNNN~?[/imath]

 

[Saumyojit]

WWWWWNNN ?

oh yes . My bad . I did this type of sum before thanks