Question

10 students are running a race. The fastest 3 will win a gold medal. How many different ways can the students win these medals?

Answer 1

all i need to know if this is combinations or permutations

Answer 2

in permutation x1x2 and x2x1 are different cases, in combinations they both come under one case, now that you know the difference .. you should be able to findout which one it is

Answer 3

permutations

Answer 4

well how i learned it was that order counts in perm. and it doesnt count in comb. seeing as its asking how many different ways they could win i put combinations

Answer 5

can you explain a way for me to determine that because i have another one of these

Answer 6

is it 3^10 ?

Answer 7

Think about it this way, say student A,B,C are the winners and get the medals. It is the same as if B,C,A are the winners.

Answer 8

the answer will be 45 ways for sure

Answer 9

12C2

Answer 10

what is the answer?

Answer 11

10*9*8 ways

Answer 12

is the final answer if repetation is not allowed

Answer 13

is that the answer???

Answer 14

10C3
its combination because first three gets a gold medal so combination