# Math Help - help!

1. ## help!

i need help with this question!

In a track meet with 10 runners,how many ways can 1st,2nd and 3rd be awarded?

2. Originally Posted by chaunie
i need help with this question!

In a track meet with 10 runners,how many ways can 1st,2nd and 3rd be awarded?
it is $_{10}P_3 = 10 \cdot 9 \cdot 8 = 720$

can you tell me why that is?

3. ## yes!

there are 10 runners and 3 outcomes so you plug it in the calculator using nPr button. the order does matter in this situation. thanks!