Is My Answer Correct?

[Roses Are Red]

A certain drawing states that the odds of winning are 280:88. What would be the odds against winning?

1. 280:88
2. 280:368
3. 88:280
4. 88:368

Someone told me that I should add 280 + 88 to get 368, so therefore my answer should be number 4. However, I chose number 3. Am I right? If so, how is he wrong, and why am I right?

 

[tkhunny]

Odds of winning 280:88

Probability of winning 280/(280+88)

Your "someone" has odds confused with probability. I hope it's not a boyfriend. Could be a problem.

 

[Roses Are Red]

Odds of winning 280:88

Probability of winning 280/(280+88)

Your "someone" has odds confused with probability. I hope it's not a boyfriend. Could be a problem.

No, it isn't a boyfriend...just a friend ~ LOL. Anyway, am I correct?

 

[tkhunny]

Come on -- a little confidence.

We ruled out 2 and 4 with the probability confusion.
Why would it be exactly the same unless it was n:n, which it isn't? Throw out 1

Only one answer left and it makes sense.

Good work.