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Social ScienceWhat are all the ways in which the top 4 racers in a 20 person race can finish?
What are all the ways in which the top 4 racers in a 20 person race can finish?
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Introduction:
In the given situation, the number of persons participated in the race is 20. The requirement is the top 4 racers.
- There are 20 different racers that can come in the first.
- Then, there are 19 different racers who do not come in the first, can come in the second.
- Next, there are 18 different racers who do not come in the first or second, can come in the third.
- After that, there are 17 different racers who do not come in the first or second or third, can come in the fourth.
Find the number of ways in which the top four racers in a 20 person race can finish:
The total number of racers is 20.
The required number of top racers is 4.
The number of ...
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