Consider the following information and answer the questions based on it.

Out of 200 students, 20 have only red balloons, 30 have only blue balloons, 25 have only black balloons, 15 have both black and green balloons, 15 have both red and yellow balloons, 40 have only green balloons, 20 have both blue and black balloons, 25 have only yellow balloons, 5 have both red and black balloons and the rest of the students do not have any balloons.