Let n(∪) = 700, n(A) = 200, n(B) = 300 and n(A∩B) = 100 then n(A'∩B' )
400
600
300
200
If P∪Q = {5, 11, 14, 17, 19, 20}, P∩Q = {14} and p = {5, 11, 14, 17}, then Q
{17, 19, 20}
{14, 19, 17, 20}
{5, 14, 17, 19, 20}
{14,1 9, 20}
If {(2, 7), (4, x)} represents constant function then the value of x is
2
4
7
-2
A and B are sets such that A - B = A, we can say that
A is a subset of B
B is a subset of A
A and B are disjoint sets
A∪B = A
(A')' =
U
A
None
If {(2, a), (b, 3)} represents an identity function then values of a and b are
2,2
3,2
2,3
3,3
If f(x) = 3x and g(x) = 3/x then gof is
x
x/3
3/x
1/x
Sets A and B have 3 and 6 elements respectively. What can be the minimum number of elements in A∪B ?
3
6
9
18
If A = [1, 2}, B = {1, 2, 3, 4} then
A and B are equal sets
None of these
If A = {2, 3, 4}, B = {1, 3, 5, 7} U = {1, 2, 3.......8} then (A∪B)' is
{6, 8}
{1, 2, 3, 4, 6, 7}
{3}
{8}
