Universal Set

Q. If A = {2, 4 , 6}, then the universal set of A is ___________ .

1. $\{x:x\in W\}$
2. $\{x:x\in Z\}$
3. $\{x:x\in N\}$
4. None of the above.

Q. Using the Venn diagram given below, find the universal set.

1. $U$= {1, 2, 3, 5, 6, 9}
2. $U$= {1, 2, 3, 4, 5, 6, 7, 8, 9}
3. $U$ = {4, 7, 8}
4. $U$ = {1, 2, 4, 7, 8}

Q. What is the set that represents the universal set?

1. {12, 14, 15, 18, 21}
2. {10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21}
3. {10, 11, 12, 14, 15, 18, 21}
4. {21}

Q. A set which contains all the sets under consideration as its subsets is called a _______________.

1. subset
2. null set
3. universal set
4. complement set

Q. A Universal Set is the set of all elements under consideration, denoted by U. All other sets are subsets of the universal set.

1. True
2. False

Q. A relation from P to Q is

1. A universal set of $P\times Q$
2. $P\times Q$
3. An equivalent set of $P\times Q$
4. A subset of $P\times Q$

Q. Let A and B be two sets in the universal set. Then A-B equals

1. $A\cap B$
2. $A^c\cap B$
3. $A\cap B^c$
4. $Noneofthese$

Q. If A = {2, 4 , 6}, then the universal set of A is ___________ .

1. $\{x:x\in W\}$
2. $\{x:x\in Z\}$
3. $\{x:x\in N\}$
4. None of the above.

Q. A set which contains all the sets under consideration as its subsets is called a _______________.

1. subset
2. null set
3. universal set
4. complement set

Q. The complement of universal set is ____ set.

1. singleton
2. null
3. finite
4. infinite