## sonofa_nh Group Title Make a 6 day schedule for a school with 25 students. Each day the students are divided in a different way into 5 groups of 5 students. Never are are two students in the same group more than one time during the week one year ago one year ago

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1. lopus Group Title

combinations without repetition $\frac{ n! }{ r!(n-r)! }$

2. sonofa_nh Group Title

okay...so if for day 1...i go 12345 678910 etc..

3. sonofa_nh Group Title

would be 5 horizontal lines

4. sonofa_nh Group Title

day 2...5 vertical lines...day 3 would be 5 diagonal lines...day 4...diagnol the other way...how would day 5 and 6 look?