Popular Questions
- If two sets A and B are having 99elements in common, then the number of elements common to each of the sets A×B and B× A a..
- Given n(U)=20, n(A)=12, n(B)=9, where U is the universal set, A and B are subsets of U, as given below
- If Na= { an:n E N } , then N5 further given below
- If A, B, C be three sets such that A ∪ B = A ∪ C and A ∩ B = A ∩ C, then
- If X = {4^n - 3 - 1 : n € N} and Y = {9 (n -1) : n € N}, then X ∪ Y is equal to
- Let A and B be two sets containing four and two elements respectively. Then
- If a set A has n elements, then the total number of subsets of A is
- In a town of 10000 families it was found that 40% family buy newspaper A, 20% families buy newspaper B and 10% families buy newspa..
- In a class of 55 students, the number of students studying different subjects are 23 ij mathematics, 24 in physics, 19 in chemistr..
- If the sets A and B are defined as A={(x,y) : y = e^x , x € R } ; B = { (x,y) : y = x, x € R}, then
- In a class of 100 students, 55 students have passed in mathematics and 67 students have passed in physics. Then
- Out of 800 boys in a school, 224 played cricket, 240 played hockey and 336 played basketball. Of the total,
- If A, B and C are non-empty sets, then (A-B) ∪ (B-A) equals
- The set A = { x : x € R,x^2 = 16 and 2x = 6 } equals
- Given the sets A = {1,2,3}, B = {3,4}, C = {4, 5, 6}, then
- The number of non-empty subsets of the set { 1, 2, 3, 4} is
- A class has 175 students. The following data shows the number of students obtaining one or more subjects.
- For any two sets A and B, A - (A - B) equals
- There are 100 students in a class. In an examination, 50 of them failed in mathematics, 45 failed in physics, 40 failed in biology..
- In a city 20 percent of the population travels by car, 50 percent travels by bus and 10 percent travels by both car and bus.
- If two sets A and B are having 99 elements in common, then the number of elements common to each sets A*B and B*A are
- Given n(U) = 20, n(A) = 12, n(B) = 9, n(A∩B) = 4, where U is the universal set A and B are subsets of U, then n((A∪B)^c)..
- If Na = {an : n € N }, Then N5 ∩ N7 =
- Let X and Y be the sets of all positive divisors of 400 and 1000 respectively
- Let A = {1,2,3,4}, B = {2,4,6}. then the number of sets C such that A ∩ B
- If n(A) = 8 and n(A ∩ B) = 2, then n[(A ∩ B)∩A] is equal to
- Which of the following is the empty set
- If P, Q and R are subsets of a set A, then R
- If A and R are any two sets then A ∪ (A ∩ B) is equal to
- In rule method the null set is represented by
- If A = {a,b,c}, B = {b,c,d} and C = {a,d,c}, then (A-B)*(B ∩ C) =
- The set of intelligent students in a class is
- If A = {a,b}, B = {c,d}, C = {d,e}, then {(a,b),(a,d),(a,e),(b,c),(b,d),(b,e)} is equal to
- The shaded region in the given figure is
- If n(A) = 1000,n(B) = 500 and if n(A ∩ B)≥1 and n(A ∪ B) = P, then
- If A,B and C are any three sets, then A * ( B ∪ C) is equal to
- Let A = {a, b, c}, B = {b, c, d}, C = {a, b, d, e}, then A ∩ (B ∪ C) is
- Let n(U) = 700,n(A) =200,n(B) = 300 and n(A ∩ B) =100, then
- If A and B are given sets, then A ∩ (A ∩ B)^c is equal to
- If n(A) denotes the number of elements in set A n(A) = 4,n(B) = 5 and n(A∩B) = 3, then n [(A*B) ∩ (B*A)] =
