There are 40 entries in the science Fair how many ways can they finish in first second and 3rd place. A.240

1 answer:

6 0

This is an example for the variations without the repetition.
V m, n = n * ( n - 1 ) * ( n - 2 ) .... ( n - m + 1 )
In this case: m = 3, n = 40
V 3, 40 = 40 * 39 * 38 = 59,280 ways.
Answer:
d. 59,280

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