- #1
hsetennis
- 117
- 2
Homework Statement
There are 8 beads: 4 black, 3 white, and 1 red.
How many ways can these be arranged on necklace?
Homework Equations
Just combinations nCm = (n-m)!/(m!).
The Attempt at a Solution
8C4 = 70, 4C3 = 24, and 1C1 = 1, so the total number of combinations is 95?
Or do I multiply them, resulting in 1680 possibilities?
Multiplication seems like the logical way of solving it, because it is a union of the sets of possibilities, but I haven't done this is a long time so I'm unsure.