In how many ways is it possible to select three objects from a set of six objects? Use the
letters A, B, C, D, E and
Accepted Solution
A:
To find the number of ways to select three objects from a set of six objects (A, B, C, D, E, and F), you can use the combination formula, often denoted as "n choose k," where n is the total number of objects to choose from (in this case, 6 objects), and k is the number of objects you want to choose (in this case, 3 objects).
The formula for combinations is:
C(n, k) = n! / (k! * (n - k)!)
Where "!" denotes factorial, which is the product of all positive integers up to a given number.
In this case, you want to find C(6, 3):
C(6, 3) = 6! / (3! * (6 - 3)!)
C(6, 3) = (6 * 5 * 4) / (3 * 2 * 1)
Now, calculate the values:
C(6, 3) = (120) / (6)
C(6, 3) = 20
So, there are 20 different ways to select three objects from a set of six objects (A, B, C, D, E, and F).