The greatest number of sets Regan can make is 2000
Combination can be defined as the number of possible arrangement of an object without consideration of its order.
The formula for combination is expressed as;
Combination = n!/(n - r)! r!
Where;
From the information given;
n = 16
r = 12
Substitute into the formula;
C(16, 12) = 16!/(16- 12)!12!
C( 16, 12) = 16!/4!12)
C(16, 12) = 2× 10 ^13/1. 0 × 10^10
Divide through
C( 16, 12) = 2000
The greatest number of sets is 2000
Thus, the greatest number of sets Regan can make is 2000
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