Jenita\'s color should be yellow. John\'s color cannot be violet and red, it might be yellow or green. As Jenita\'s color is yellow, so John\'s color will be green. Maria\'s do not like violet, so her color must be Red. Then Julie\'s color is violet. Solution Jenita\'s color should be yellow. John\'s color cannot be violet and red, it might be yellow or green. As Jenita\'s color is yellow, so John\'s color will be green. Maria\'s do not like violet, so her color must be Red. Then Julie\'s color is violet..