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2 years ago

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

2 answers:

7 0

Ans: 720

<span>This is equal to the number of different arrangements of three persons from a group of 10 persons </span>

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
<span>Total = 10C3×3! = 720 .hope i was able to help :)</span>

Daniel [21]2 years ago

5 0

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