probability question : For a particular species of cat, the odds against a kitten

For a particular species of cat, the odds against a kitten being born with either blue eyes or white spots is 3:1. If the probability of a kitten exhibiting only one of these traits is equal and the probability of exhibiting both the traits it 10%, what are the odds in favour of a kitten having blue eyes?


The answer is given as being 7:33, but how would I arrive at this answer?

citruslift said:

For a particular species of cat, the odds against a kitten being born with either blue eyes or white spots is 3:1. If the probability of a kitten exhibiting only one of these traits is equal and the probability of exhibiting both the traits it 10%, what are the odds in favour of a kitten having blue eyes?


The answer is given as being 7:33, but how would I arrive at this answer?

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Hi, I guess that you did not read the rules of the forum. We are a math help forum where there are some volunteers willing to help you with your math question but you need to show us your attempt.
Can you translate what you are given?
the odds against a kitten being born with either blue eyes or white spots is 3:1
If the probability of a kitten exhibiting only one of these traits is equal
the probability of exhibiting both the traits it 10%