Question

At most racetracks consists a selection of 1st 2nd or 3rd finishers in a proper order. If they are 10 entries in the race, how many tickets must you purchase to win?

Answer 1

NO MORE CHEATING

Answer 2

I didn't cheat I been getting them

Answer 3

define winning, getting first place only ?

Answer 4

idk

Answer 5

Please provide some help on my question after you are done with this one. My question is posted at http://openstudy.com/groups/mathematics#/updates/4db9038eb0ab8b0ba0277b8b

Answer 6

r u back

Answer 7

To win the Trifecta, you must pick the three horses finishing first, second and third in exact order

Answer 8

http://www.santaanita.com/content/how-wager

Answer 9

ok

Answer 10

now what

Answer 11

so you want to pick 3 horses out of 10 , where order counts

Answer 12

the order will determine the first, second and third in the race

Answer 13

we know that the number of ways to choose 3 things out of ten where order counts is 10 P 3 , where P is permutations

Answer 14

ok

Answer 15

so 30?

Answer 16

0r 3.333333

Answer 17

how did you get 30?

Answer 18

by times it

Answer 19

10 P 3 is 10 *9 * 8

Answer 20

another way to look at this, there are 10 ways for a first , then once you pick a first winner, there are 9 horses left for a second place, then once you pick a second place there are 8 horses left for a third place

Answer 21

ohh

Answer 22

so 10 * 9 * 8

Answer 23

720

Answer 24

yes

Answer 25

so you would have to buy A LOT of tickets to win, i wonder if this is feasible to make money

Answer 26

whats the difference with c

Answer 27

c?

Answer 28

like my new one

Answer 29

would it be the same as mustiplying

Answer 30

like 12C2

Answer 31

you have a new one?