There are 5C3 = 10 groups.
if order does not matter then, (23x22x21x20x19)/(5x4x3x2x1) = 33,649
two
12 groups of 250 g will be in 3 kg
84 = 9 choose 3 = 9! / 3! / (9-3)!
Two
17
as many as they want
5005
Fifty-three players.
The team is out when three players are out.
fifty three
Three
It has three main groups.
There are 5C3 = 10 groups.
There are three main groups: Igneous, Sedimentary, and Metamorphic.
There are twenty three players for the Toronto Maple Leafs.