Sets Test - 5...

Let A = { a,b,c } , B = { b,c,d } , C = { a,b,d,e } , then  A∩(B∪C) is

If A and B are two sets , then A∪B=A∩B if:

The power set of {2, 5} is

If A and B be any two sets , then (A∪B)′  is equal to

In a town, 48% people are educated, 51% people are young, 60% are servicemen, 24% are educated and young. There are 25% are young and servicemen, 27% are educated and servicemen and 5% fit in all the three categories. What is the ratio of educated or young, but not servicemen to young or servicemen but not educated?

Let A = { 1,2,3,4} , B = { 2,3,4,5,6 } , then (A∩B)is equal to :

If A  B then for a non-empty set C,

Which of the following is an empty set?

Which of the following is a null set ?

If N_a = {an : n  N}, find the value of N₆  N₈.

Two sets A and B are said to be disjoint iff

The set (A ∩ B^c)^c ∪ (B ∩ C) is equal to

If A  B, B  A then

Given that aN = {ax : x  N} and bN  cN = dN, where b, c  N and b, c are co-prime to each other.
Which of the following conditions is true according to the statement given above?

If A = {letters of the word xerox} and B = {x, y, z, w}, then find A  B.

In a meeting of 100 people, there were 23 Indian men and 29 Indian women. Of these Indian people, 4 were dentists and 24 were either men or dentists. Assuming that there were no foreign dentists, find the number of female dentists who attended the meeting.

In a group of 50 persons, everyone takes either tea or coffee. If 35 persons take tea and 25 persons take coffee, then the number of persons who take tea only (and not coffee) is

If A and B are two sets , then A∪(A∩B) is equal to

If A is any set , then

For any two sets A and B, A = B is equivalent to

If A = {x: – 2  x  2, x  integers} and B = {x: – 3  x  3, x  integers}, then find A  B.

If X = {4ⁿ – 3n – 1 : n  N} and Y = {9 (n – 1) : n  N}, then which of the following is equal to X U Y?

If A = {1, 2, 3}, B = {3, 4} and C = {4, 5, 6}, find A  (B ∩ C).

If A ⊆B , then A∩B is equal to

If A ⊆B , then A∪B is equal to