Answer:
336
Step-by-step explanation:
Given
[tex]Number = 8[/tex]
[tex]Positions = 1st, 2nd, 3rd[/tex]
Required
Determine number of first, second and third;
The first position can be any of the 8 runners
The second position can be any of the remaining 7
The third positioncan be any of the remaining 6
[tex]Possible\ Places = 8 * 7 * 6[/tex]
[tex]Possible\ Places = 336[/tex]