In a school garden, there are flowers in different colors. In total there are 96 flowers of four colors: green, red, blue, and yellow. There are 9 green flowers and three times more red flowers. Blue flowers make up to 50% of the total flower count. How many yellow flowers are there?
There are 3 * 9 = <<3*9=27>>27 red flowers.
50/100 * 96 = <<50/100*96=48>>48 flowers are blue.
Knowing that, there are 96 - 48 - 27 - 9 = <<96-48-27-9=12>>12 yellow flowers in a school's garden.
#### 12