3. At the school festival, you can win a bicycle by pulling a red bull out of bag. The first bag has 52 white balls, 27 green balls, and 11 red balls. The second bag has 25 white balls, 25 green balls, 25 yellow balls, and 10 red balls.

a. What are the odds of pulling a red ball from the first bag?
b. What are the odds of pulling a red ball from the second bag?
c. Which bag has the best odds?