Answer
No. of Runners = 50
No. of ways runners finish = 50! / (50 - 3)!
= 50 x 49 x 48 x 47! / 47!
= 50 x 49 x 48 = 117,600
Work Step by Step
As given in answer
Elementary Statistics: Picturing the World (6th Edition)
by Larson, Ron; Farber, Betsy
Published by
Pearson
ISBN 10:
0321911210
ISBN 13:
978-0-32191-121-6
Chapter 3 - Probability - Section 3.3 The Addition Rule - Exercises - Page 164: 23
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