Posted by **GwendolynDuncan** on Tuesday, August 17, 2010 at 4:33pm.

Can you help me understand this math problem...I could figure it out the long way but I think there is a formula that I can use that I'm not remembering:

I have 18 different colors of marbles. I'm going to arrange them in sets of three.

I want to do this 6 times with out any of them ever being in the same set again...like the first time I might have orange, purple, green in one set and so the next time, I don't want there to be a set with any of those three together.

If it doesn't work right with doing it six times, I think it should with 5 times.

Any help?

## Answer this Question

## Related Questions

- Math - I fell asleep trying to figure this one out ... if you could help I would...
- chemistry - I know how to use the equations pv=nrt and P1xV1/n1xT1 = P2xV2/n2xT2...
- factoring cubes - how to factor x^3-27 well since 27 is a perfect cube and so is...
- math - Okay. so say their is a list of numbers: x y 0 3 1 5 2 7 3 9 4 11 I know ...
- Math - I am trying to figure how to solve this but I am totally confused? Can ...
- Science and Math Combined - Can someone please help me understand how I figure ...
- math concepts - Matthew sits at his desk unable to figure out the answer to a ...
- Math - I am trying to help my son in Algebra, the only thing is that I have ...
- Algebra - Word Problem: Jack mows the lawn in 4 hours, mary mows the lawn in 5 ...
- math - So i need to figure out what the angle and speed was of a foot ball that ...