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Popular Questions
- In rule method the null set is represented by
- Let A and B be two sets. then
- Let A and B be subsets of a set X. then
- If A = {1,2,3,4} ; B = {a,b} and f is a mapping such that f : A →B, Then A*B is
- A survey shows that 63% of the Americans like cheese whereas 76% like apples.
- If A and B are two sets, then A ∩ (A ∪ B) is equal to
- Suppose A1,A2,A3,.......,A30 are thirty sets each having 5 elements and B1,B2,......,Bn are n sets each with 3 elements .
- If A and B are two sets, then (A U B)^\ (A^\ B) is equal to
- In a class of 100students, 55 students have passed in maths and 67 students have passed in physics. As given below
- Sets A and B have 3 and 6 elements respectively.
- Let A and B be two sets containing four and two elements respectively. Further as given below
- If A and B are two sets then (A - B) ∪ (B - A) ∪ (A ∩ B) is equal to
- 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..
- The value of (A ⋃ B  ⋃ C) ⋂ (A ⋂ B^c ⋂ C^c) ⋂ C^c, is
- If A, B and C are non-empty sets, then (A-B) ∪ (B-A) equals
- Let Z be the set of integers. If
- In an exam, 50 of them failed in maths, 45 failed in physics, 40 failed in bio and 32 failed in exactly two of three subjects. Fur..
- Out of 800 boys in a school, 224 played cricket, 240 played hockey and 336 played basketball. Of the total,
- In a class of 100 students, 55 students have passed in mathematics and 67 students have passed in physics. Then
- Of the members of three athletic teams in a school 21 are in the cricket team, 26 are in the hockey team and 29 are in the footbal..
- If A and R are any two sets then A ∪ (A ∩ B) is equal to
- The number of non-empty subjects of the set{1,2,3,4} is
- Let a relation R be defined by R = { (4, 5); (1, 4); (4, 6); (7, 6); (3, 7) } then R^-1oR is
- Let R ={(1, 3), (2, 2), (3, 2)} and S = {(2, 1), (3, 2), (2, 3) } be two relations on set A = {1, 2, 3}. Then RoS =
- The relation R = { ( 1, 1), (2, 2), (3, 3), (1, 2), (2, 3), (1, 3) } on set A = { 1, 2, 3, } is
- A class has 175 students. The following data shows the number of students obtaining one or more subjects.
- Let A and B be two sets containing four and two elements respectively. Then
- In a battle 70% of the combatants lost one eye, 80% an ear, 75% an arm, 85% a leg, x% lost all the four limbs. The minimum value ..
- There is a group of 265 persons who like either singing or dancing or painting. In this group, 200 like singing, 110 like dancing ..
- Let W denote the words in the English dictionary. Define relation R by
- There are 100 students in a class. In an examination, 50 of them failed in mathematics, 45 failed in physics, 40 failed in biology..
- x^2 = xy is a relation which is
- 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..
- Out of 64 students, the number of students taking Mathematics is 45 and number of students taking both Mathematics and Biology is ..
- With reference to a universal set, the inclusion of a subset in another, is relation, which is
- If f : R --> R and is defined by
- A survey shows that 63per of the Americans like cheese whereas 76per like apples. If x per of the Americans like both cheese and ..
- If A and B are given sets, then A ∩ (A ∩ B)^c is equal to
- If A = {x:x^2 - 5x + 6 = 0}, B = {2,4}, C = {4,5}, then A*(B intersection C) is
- In a certain town, 25per families own a cell phone, 15per families own a scooter and 65per families own neither a cell phone nor ..
