Question

an advertising agency find that,of its 170 client,115 use television,110 use radio,and 130 use magazine.Also 85 use television and magazine,75 use television and radio,95 use radio and magazine, 70 use all the three. draw venn diagram to represent the data.Also find.... (i) how many use only radio (ii)how many use only television (iii) how many use television and magazine but not radio​

Answer 1

total = 170

tv = 115

r = 110

mg = 130

tv and mg = 85

tv and r = 75

r and mg = 95

tv, mg and r = 70

Maximum no. of people who watch any two things = 170 - 70 = 100

Maximum no. of people who watch tv with some other thing = 85

Maximum no. of people who watch r with some other thing = 95

Maximum no. of people who watch mg with some other thing = 95

1) Only tv = 115 - 85 = 30.

2) Only r = 110 - 95 = 15.

3) tv and mg without r = 85 - 70 = 15.