Sets and diagrams?

Question

Here are the results of a survey of magazine readers:

28 read Business Week
31 read Time
11 read Business Week and Newsweek
10 read Business Week and Time
15 read Newsweek and Time
8 read all three magazines.
31 don't read any of the magazines
A total of 98 people were included in the survey.
Put this information into a Venn diagram.

How many read ONLY Business Week?
How many read ONLY Business Week and Newsweek?
How many read exactly 2 of the 3 magazines?
How many read ONLY Newsweek?
How many read Newsweek and Time?

Answer 1

15 read ONLY Business Week

11 read ONLY Business Week and Newsweek

12 read exactly 2 of the 3 magazines

18 read ONLY Newsweek

15 read Newsweek and Time

hint:
28-13=15

31-17=14
98-31=67
67-49=18

The numbers in B
15, 2,3,8

The numbers in T
2, 8,7,14

The numbers in N
3,8,7,18

Draw 3 intersecting venn diagrams
and locate these numbers there