There are 5 boys and 4 girls in my class.
In how many ways can they be seated in a row of 9 chairs such that at least 2 boys are next to each other?
In how many ways can they be seated in a row of 9 chairs such that at least 3 girls are all next to each other?
5 answers
look back at your other post
no reply
http://www.jiskha.com/display.cgi?id=1381013688
sorry, i mean you are correct?
but how about number 2. That was harder for me.
but how about number 2. That was harder for me.
the question mark is a ! not a ?
1 answer