for you to get the number of the participants wearing their respective color of gloves you'll have it this way:
for white gloves:
[tex]36 ( \frac{1}{2} ) = 18[/tex]
for black gloves:
[tex]36( \frac{1}{4}) = 9 [/tex]
for red gloves:
[tex]36( \frac{1}{8}) = 9/2 [/tex]
