120 pianists compete in a piano competition. In the first round, 30 of the 120 are...

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Answer 1

Answer #1

Permutation and combination concepts:

Answers:

1. Here, we are going to select 120 out of 30 so, combination must be C(120,30)

2. Possible outcomes to select first five will be P(30,5)

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Answer 2

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