3 years ago

9 students volunteer for a committee. How many different 2-person committees can be chosen?

Mathematics

2 answers:

asambeis [7]3 years ago

7 0

It is definitely going to be 72

MariettaO [177]3 years ago

6 0

The answer is 72, since for the first person, we have 9 choices. The second choice, we have 8 choices. Therefore, the answer is 8 times 9, which is 72.

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