Assuming that the apples are not tossed back into the bag after drawing them.
Total of 9 apples.
1st draw yell, 4/9
2nd draw yell, 3/8
3rd draw red, 5/7
4th draw red, 4/6
[tex] \frac{4}{9} * \frac{3}{8} * \frac{5}{7} * \frac{4}{6} = \frac{240}{3024} \\ \\ = \frac{5}{63} [/tex]
