Answer: 44.44% approximately
Work Shown:
P(red) = (number of red)/(number total)
P(red) = (12 red)/(12 red + 5 green + 6 yellow + 4 blue)
P(red) = (12 red)/(27 total)
P(red) = 12/27
P(red) = 4/9
P(red) = 0.4444 approximately
P(red) = 44.44% approximately