A small high school has 30 seniors, 20 juniors, and 10 sophomores. If 3 students are chosen from each class to be on a school board, how many different board can be selected?

Question

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How would I go about this? Is this problem a combination?

Answer 1

since the three classes are separate, the combinations have to be calculated separately:

30C3 * 20C3 * 10C3 = 4060 * 1140 * 120 = _______

Answer 2

Ohh! Thank you so much!