Okay... Here goes...
A ski trip at the school has been arranged. 30 students and 6 parents are to attend. The buses are being split up into oen group of 10 students with 2 parents and 20 students with 4 parents.
a) How many different groups of 10 Students can be formed.
So I did n=30 r=10.... 30 P 10 = 30!/(30-10)! And got 1.1 x 10 ^14
b) How many different groups of 10 students with 2 parents are possible?
So I have my 1.1x10^14 and figured out there are 30 ways the parents can be arranged....
So my question is do I add 1.1x10^14 to 30 or do I multiply them?
2006-11-26 07:09:13 · 6 answers · asked by gg 4 in Science & Mathematics ➔ Mathematics
multiply
2006-11-26 07:12:36 · answer #1 · answered by i_number9 1 · 1⤊ 1⤋
I did it really FAST in my head and came up with 3 groups of 10 students each having 2 parents.
Is this a beginner question or did I miss something? :)
2006-11-26 07:29:44 · answer #2 · answered by Chuck S 3 · 0⤊ 0⤋
The answer for (a) is 3 groups and (b) is 3 groups.
2006-11-26 07:18:23 · answer #3 · answered by Kelly J 1 · 1⤊ 0⤋
you multiply
2006-11-26 07:14:29 · answer #4 · answered by raj 7 · 0⤊ 1⤋
hehe i left school a long time go lol...go to this site, it should help!!!
2006-11-26 07:13:43 · answer #5 · answered by FotoFan85 3 · 0⤊ 2⤋
i think that is right.
2006-11-26 07:17:59 · answer #6 · answered by Alex r 1 · 0⤊ 0⤋