sma22kat sma22kat

12-04-2021
Mathematics

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There were 11 students running in a race how many different arrangements of first second and third place are possible

Respuesta :

aminerassam aminerassam

12-04-2021

Answer:

990

Explanation:

For first place, we have 11 choices

11 × __ × __

For second place, we have 10 choices

11 × 10 × __

And for third place, we have 9 choices

11 x 10 x 9 = 990 ways

This is also a permutation

11! / (11-3)! = 990

Hope it helps

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