The group of beatiful girls is _______.
A null sets
A finite set
A singleton set
Not a set
Let A, B, C be any three non - empty sets. If AUB = AUC then which one of the following is definitely true ?
B = C
B C
C B
None of these
Out of 40 children 30 can swim, 27 can play chess and only 5 can do neither. How many children can swim only ?
30
22
12
8
If A and B are any two sets, then A U B = ______.
The set builder form representation of A = {2,4,6,8,10} is _________
A = {x:x is an odd number ≤10}
A = {x:x is an even number ≥10}
A = {x; x is an even number≤10 }
If a set A contains 3 elemetns and another set B contains 6 elements, then the number of elements in AUB would be :
9
Either 8 or 9
Either 7 or 8 or 9
Either 6 or 7 or 8 or 9.
If x = { Multiple of 2 } x Y = {Multiple of 5 }, z = { multiples of 10 } then x ∩ (Y∩z) is equal to ________.
{multiples of 10 }
{multiples of 5 }
{multiples of 2 }
{multiples of 20 }
The set A is called ___________of set B if every element of A is also an element of B.
Super set
Subset
Proper set
Real set
If s = {x : x2 + 1 = 0 , x is real } then S is :
0
{ 0 }
{ Φ }
Φ
The number of elements of a finite set is called the ___________of that set.
Order
Null
Singleton
None
