Question

Mya is planting 11 colored flowers in a line. In how many ways can she plant 4 red flowers, 5 yellow flowers, and 2 purple flowers?

Answer 1

11!/(5!*4!*2!)
Would you like explanation?

Answer 2

Red = 4
Yellow = 5
Purple = 2

my answer is in combinations... 3^2 = 9

Answer 3

11! would be if you have 11 different flowers.

Answer 4

Now because you have 4+5+2 same ones you are counting a lot of cases twice if you do 11!

Answer 5

Andras is good go with his reply

Answer 6

4 red can be arranged in 4! ways
5 yellow in 5! ways
2 purple in 2! ways
So these are the ones that you are counting too many times.
So the sol:
11!/(2*24*120)

Answer 7

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