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Source: Magoosh
In a bag are 6 identical green marbles, 4 identical blue marbles, and 2 identical red marbles. If 3 marbles are picked at random from the twelve in the bag, how many distinct sets of three can be selected?
A. 9
B. 10
C. 15
D. 21
E. 91
The OA is A
In a bag are 6 identical green marbles, 4 identical blue marbles, and 2 identical red marbles. If 3 marbles are picked at random from the twelve in the bag, how many distinct sets of three can be selected?
A. 9
B. 10
C. 15
D. 21
E. 91
The OA is A
