A picture really does speak a thousand words when it comes to Venn diagrams. What have you tried?
Surely the smallest possible value of n is 0? In other words everyone subscribes to one or the other.
Hi guys, please give me some clues into solving this question from a workbook.
Question: There are 50 units in an apartment block. 40 units subscribe to the Straits Times, 20 units subscribe to the Business Times, m units subscribe to both Straits Times and Business Times, and n units subscribe to neither Straits Times nor Business Times.
By drawing Venn diagrams, find
a) the smallest possible value of n,
b) the largest possible value of n,
c) the largest possible value of m,
d) the smallest possible value of m.
Thanks a lot!
You know that . As you only have one equation and two unknowns you won't be able to get just one pair of values - but the question isn't asking you that. It's asking you questions about certain values.
For example, is it possible for all 50 units to subscribe to one, the other or both?