Given that A = { 1, 9, 11, 15, 17 }, B = { 11, 17, 19, 21 } and C = { 3, 5, 7 }. Then (A∩B)∪C = ____________.
{ 11, 17 }
{ 3, 5, 7, 11, 15 }
{ 3, 5, 7, 11, 17 }
{ 3, 5, 7, 11, 17, 19 }
What is the probability of getting a sum 9 from two throws of a dice?
1/6
1/8
1/9
1/12
Let A = { factors of 36 } and B = { factors of 48 } find A∩B?
{ 1, 5, 7, 11 }
{ 1, 2, 3 }
{ 1, 2, 3, 4, 5, 6, 12 }
{ 1, 2, 3, 4, 6, 12 }
The smallest set A such that A ∪ { 1, 2 } = { 1, 2, 3, 5, 9 } is ________.
{ 3, 5, 9 }
{ 2, 3, 5 }
{ 1, 2, 5, 9 }
None of these
Set A and B have 3 and 6 elements respectively. What can be the minimum number of elements in A∪B?
3
6
9
18
Number of outcomes when n coins are tossed is _______.
n2
2n
n
If a dice is thrown, the probability of getting an even number is __________.
2
1/3
1/2
A set which contains no element is called ___________.
infinite set
empty set
equal set
equivalent set
The number of outcomes when a dice and and a coin are thrown is _______.
4
12
if n(A) = 10, n(B) = 6, n(A∩B) = 4, then n(A∪B) = ?
16
20
10
