Question

There are 25 people competing in a race. In how many ways can they finish in first and second place?

Answer 1

25 choice for first place
then 24 for second

Answer 2

by the counting principle it is therefore \(25\times 24\)

Answer 3

300 ways if you are doing probability.

Answer 4

but if you are multiplying you do not get \(300\) that is for sure

Answer 5

so 600

Answer 6

yes

Answer 7

That is true however you take a calculator and plug in 25nCr2 and you get 300. 25 as in people nCr because order does not matter. and you want only two places. so the answer is 300.

Answer 8

I don't have 300 as a choice but I do have 600

Answer 9

of course order matters
first place is first place
you win more money than second place

Answer 10

that is true you can't win first and second good call.

Answer 11

ok thanks