What is the cardinal number of the set {coke, fanta, sprite}
3
1
4
If set A equals the people in your class and set B equals the people in your class who wear glasses. What is meant by A B?
All the people in your class.
The people in your class who wear glasses.
The people in your class who do not wear glasses.
If set A equals the people in your class and set B equals the people in your class who wear glasses. What is meant by A B?
All the people in your class.
The people in your class who wear glasses.
The people in your class who do not wear glasses.
If set A equals the people in your class and set B equals the people in your class who wear glasses. What is meant by A \ B?
All the people in your class.
The people in your class who wear glasses.
The people in your class who do not wear glasses.
In a class of 80 students, there are 60 students who play rugby and 35 who play tennis. What number would go in the coloured section of this diagram, if it is known all students play either rugby, tennis or both these games?
95
80
15
In a class of 80 students, there are 60 students who play rugby and 35 who play tennis. What number would go in the coloured section of this diagram, if it is known all students play either rugby, tennis or both these games?
45
60
80
In a class of 80 students, there are 60 students who play rugby and 35 who play tennis. What number would go in the coloured section of this diagram, if it is known all students play either rugby, tennis or both these games?
35
20
95
If A represents the Natural numbers less than 20 and B represents the even numbers less than 20, what is A B?
{2,4,6,8,10,12,14,16,18}
{2,4,6,8,10,12,14,16,18, 20}
If A represents the Natural numbers less than 20 and B represents the even numbers less than 20, what is A \ B?
{1,3,5,7,9,11,13,15,17,19}
{2,4,6,8,10,12,14,16,18}
{2,4,6,8,10,12,14,16,18, 20}
If A represents the Natural numbers less than 20 and B represents the even numbers less than 20, what is B \ A?
{2,4,6,8,10,12,14,16.18}
{1,3,5,7,9,11,13,15,17,19}
If there were only 3 types of music in the world: pop, rock and rap, and set A equals all the people in the world who prefer pop music, what is A?
The people in the world who prefer pop music?
The people in the world who prefer rock music?
The people in the world who do not prefer pop music.
Set A is all the companies in Ireland that provide internet access. What would need to happen for a company called Game who currently does not provide internet access to become a member of set A?
Game will never be a member of set A.
Game would need to become an internet provider.
A is already a member
Set A equals { 1,2,3,4} and set B equals {2,5}. Is set B A?
Yes
No
U, the universal set, is { 1,2,3,4,5} and the set A is {1,2}. What is A?