Simple 'how many ways of arranging...' question, rep.

Say you have three spaces, and two different colour counters. How many different combinations are there? Order matters, so like red blue red is different from red red blue.

How do you work that out?

Reply 1

T-go

R B R
B R R
R R B
Is that what you mean?

...probably not. :p:

Reply 2

BrightGirl

alissasantiago

R B R
B R R
R R B
Is that what you mean?

...probably not. :p:

Umm kind of, I didn't explain it properly though, there can be any number of colours, so like there could be

BBB
RRR
BRR
RBB etc.

Reply 3

whataperfectionist

red red red
blue blue blue
red red blue
blue blue red
blue red blue
red blue red
blue red red
red blue blue

Eight combinations maybe? Sorry if i've missed any out... Not sure how you would calculate it in an easier way though? :smile:

(Hope thats what you were wanting :p:

)

Reply 4

BrightGirl

whataperfectionist

(Hope thats what you were wanting :p:

)

Seems right, but is there a method for working it out? Or even some sort of mathematical website haha, I kind of need to do it for a few scenarios :p: