Question

Sally has 2 red flags, 2 green flags, and 4 white flags. How many 8-flag signals can she run up a flag pole?

Answer 1

8!

Answer 2

but how many signals there are 8 flags

Answer 3

not really getting it I no that in this problem n=8

Answer 4

8!/2!2!4!

Answer 5

no of permutation of n things out of which P is alike and are of one type, Q is alike and are of the second type, and R is alike and are of the third type....and rest are all different....

n!/P!Q!R!