Here's the question you clicked on:
sonofa_nh
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
combinations without repetition \[\frac{ n! }{ r!(n-r)! }\]
okay...so if for day 1...i go 12345 678910 etc..
would be 5 horizontal lines
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?