Answer:
There are 69120 total combinations.
Step-by-step explanation:
To find the total number of combinations, we multiply all these values. So
16 people
18 colors
12 shades
20 tertiary gradients.
How many combinations are there total?
16*18*12*20 = 69120
There are 69120 total combinations.
I believe your looking for 3*5 and that's simplified I guess
1.
Consider a group of n objects. Assume we want to form groups of r, from these n objects.
There are in total

many ways of doing so.
where, r! is "r factorial", calculated as 1*2*3*...*(r-1)*r
2.
C(x, 2) is the total number of pairs out of x objects, that we can form.
so let the x objects represent the x teams, and 2, represent a group of 2, which means a game.
The total number of games is:
n(x)=2*C(x, 2) =

Remark, we multiplied by 2, since there will be 2 matches for each pair of teams.
Answer: