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FinnZ [79.3K]
3 years ago
7

Four different sets of objects contain 2,5,6, and 7 objects, respectively. How many unique combinations can be formed by picking

one object from each set?
A 114
B 400
C 420
D 20
Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
8 0
There are 2 choices for the first set, and 5 choices for the second set. Each of the 2 choices from the first set can be combined with each of the 5 choices from the second set. Therefore there are 2 times 5 combinations from the first and second sets. Continuing this reasoning, the total number of unique combinations of one object from each set is:
2\times5\times\times6\times7=420\ combinations
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