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Universal Set

Class 10 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsIf U = {x ∈ N : x ≤ 15} and A = {x : x is a multiple of 5}, what is n(A′)?Class 10SetsComplement of a Set and Its PropertiesLevel 10Medium MathematicsIf U = {1, 2, 3, 4, 5, 6, 7, 8} is the universal set and A = {2, 3, 5, 7}, what is the complement A′ of A?Class 10SetsComplement of a Set and Its PropertiesLevel 10Easy MathematicsIf U = {x : x ∈ ℕ, x ≤ 20} and A is the set of positive divisors of 20, what is n(A′)?Class 10SetsComplement of a Set and Its PropertiesLevel 9Medium MathematicsIf U = {1,2,3,4,5,6,7,8,9}, A = {1,4,7}, and B = {2,4,8}, what is (A ∪ B)'?Class 10SetsComplement of a Set and Its PropertiesLevel 10Easy MathematicsIf U = {a, b, c, d}, A = {a, b}, and B = {b, c}, what is (A ∩ B)'?Class 10SetsComplement of a Set and Its PropertiesLevel 9Medium MathematicsLet U = {1, 2, 3, 4, 5, 6}, A = {1, 2, 3}, and B = {3, 4, 5}. What is A' ∩ B'?Class 10SetsComplement of a Set and Its PropertiesLevel 9Medium MathematicsIf A = ∅ and the universal set is U, what is A' equal to?Class 10SetsThe Empty Set, Finite and Infinite Sets, Equal SetsLevel 10Easy MathematicsIf U = {x ∈ N : x ≤ 12} and A = {x ∈ U : 3 divides x}, what is A'?Class 10SetsComplement of a Set and Its PropertiesLevel 10Medium MathematicsIf A is a subset of U, n(U) = 60, n(A) = 28, and n(A') = x, what is x?Class 10SetsComplement of a Set and Its PropertiesLevel 10Easy MathematicsIf A ⊆ U and A′ = U, what is A?Class 10SetsComplement of a Set and Its PropertiesLevel 10Easy MathematicsIf A is a subset of the universal set U, what is (A′)′?Class 10SetsComplement of a Set and Its PropertiesLevel 10Easy MathematicsIf U = {1, 2, 3, 4, 5, 6, 7, 8} and A = {1, 3, 5, 7}, how many elements are in A′?Class 10SetsComplement of a Set and Its PropertiesLevel 10Easy MathematicsIf the universal set U = {a, b, c, d, e} and A = {b, d}, what is A′?Class 10SetsComplement of a Set and Its PropertiesLevel 10Easy MathematicsIf A ⊆ U and A′ = ∅, what is the correct conclusion?Class 10SetsComplement of a Set and Its PropertiesLevel 10Medium MathematicsIf the universal set is U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and A = {2, 4, 6, 8, 10}, what is A′?Class 10SetsPower Set and SubsetsLevel 10Easy MathematicsIf U is the set of all days of the week and A = {Monday, Wednesday, Friday}, how many days are in A′?Class 10SetsComplement of a Set and Its PropertiesLevel 10Easy MathematicsIf U = {1, 2, 3, 4, 5, 6, 7} and A = {3, 5, 7}, what is the smallest number in A′?Class 10SetsComplement of a Set and Its PropertiesLevel 10Easy MathematicsIf U = {1, 2, 3, 4, 5, 6} and A = {1, 2}, what is n(A′), the number of elements in the complement of A?Class 10SetsComplement of a Set and Its PropertiesLevel 10Easy MathematicsIf U = {a, b, c, e} and A = {a, b, c, d}, what issue arises before finding A′ with respect to U?Class 10SetsComplement of a Set and Its PropertiesLevel 10Medium MathematicsIf U = {1, 2, 3, 4, 5} is the universal set, what is U′?Class 10SetsComplement of a Set and Its PropertiesLevel 10Easy