(In a group of 160 students, 30 like to sing a 2 only and 50 like to dance only. If the number of students who don't like any one of them is three times more than the students who like. 1.Write the above information in cardinal form by assuming singing song by S and dancing by D. 2.Draw a Venn-diagram to illustrate the above information. 3.Find the number of students who like at most one discipline.) C. 4.What percentage more students did not participate in both discipline than those who narticipated in both discipline? Compare? ​