sammyhehe
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Ten runners join a race. In how many possible ways can they be arranged as first, second, and third placer? Pls answer

Respuesta :

Ans: 720

This is equal to the number of different arrangements of three persons from a group of 10 persons 

Required number of ways = 10P3 = 720

OR can be solved in this way
select 3 runners (10C3 ways)
These 3 runners can be arranged in 3! ways
Total = 10C3×3! = 720
Mikexoreo
Ans: 720

This is equal to the number of different arrangements of three persons from a group of 10 persons 

Required number of ways = 10P3 = 720

OR can be solved in this way
select 3 runners (10C3 ways)
These 3 runners can be arranged in 3! ways
Total = 10C3×3! = 720 .hope i was able to help :)

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