EASY
Earn 100

If A={a,b,c,d} list the element of power set Pa

50% studentsanswered this correctly

Important Questions on Sets, Relations and Functions

EASY
If A=1,2,3,10 then number of subsets of A containing only odd numbers is
EASY
If A and B are two non-empty finite sets having 3 and 4 elements respectively, then what would be the possible number of subsets of A×B?
MEDIUM
Two finite sets A and B have m and n elements respectively. If the total number of subsets of A is 112 more than the total number of subsets of B, then the value of m is
HARD
Let Z be the set of integers. If A=xZ: 2x+2x2-5x+6=1 and B={xZ  :-3<2x-1<9}, then the number of subsets of the set A×B, is :
EASY
If a set A has 4 elements, then the total number of proper subsets of set A, is
MEDIUM
If X=4n-3n-1:nN  and Y=9n-1:nN, then XY=
MEDIUM
Two finite sets have m and n elements. The total number of subsets of the first set is 48 more than the total number of subsets of the second. The values of m and n respectively, are
EASY
The number of proper subsets of a set having n+1 elentents is
EASY
The total number of subsets of the set {1, 2, ,10} which do not contain the element 6 is
EASY
Let S=1, 2, 3, .,100, then number of non-empty subsets A of S such that the product of elements in A is even is :
HARD
Let A and B be two sets containing four and two elements respectively. Then the number of subsets of the set A×B, each having at least three elements is
EASY
Let A={ 1,2,3,4,5,6,7,8,9,10 }. Then the number of subsets of A containing two or three elements is
MEDIUM
Let A and B be two sets containing 2 elements and 4 elements respectively. The number of subsets of A×B having 3 or more elements is :
EASY
If A={x|xN,x is a prime number less than 12} and B={x|xNx is factor of 10}, then AB=
EASY
A survey shows that 73% of the persons working in an office like coffee, whereas 65% like tea. If x denotes the percentage of them, who like both coffee and tea, then x cannot be:
MEDIUM
A survey shows that 63% of the people in a city read newspaper A whereas 76% read news paper B. If  x% of the people read both the newspapers, then a possible value of x can be:
HARD
There is a set P of ordered pairs in which each pair has a vowel as first element and a consonant as second element. It is given that M=410. How many elements will be there in power set of P ?
EASY
If the total number of m-element subsets of the set A=a1,a2,,an is k times the number of m element subsets containing a4, then n is
EASY
Two finite sets have m and n elements. The number of subsets of the first set is 112 more than that of the second. The values of m and n are respectively