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Prime Numbers

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

MathematicsHow many elements are in A = {x : x is a prime number less than 12}?Class 10SetsThe Empty Set, Finite and Infinite Sets, Equal SetsLevel 4Easy MathematicsWhich option correctly describes X = {2, 3, 5, 7}?Class 10SetsSets and their representationsLevel 3Easy MathematicsWhat is the roster form of S = {x ∈ N : x is prime and 10 < x < 25}?Class 10SetsSets and their representationsLevel 2Easy MathematicsWhich is the roster form of A = {x ∈ Z : x² ≤ 16 and x is not prime}?Class 10SetsSets and their representationsLevel 3Hard MathematicsWhich option correctly shows U = {x : x ∈ ℕ, x is a prime number less than 10}?Class 10SetsSets and their representationsLevel 2Easy MathematicsWhich is the set F = {x : x ∈ N, x is a divisor of 18 and x + 1 is prime}?Class 10SetsSets and their representationsLevel 2Medium MathematicsIf J = {x : x ∈ ℕ, 10 < x < 20, and both x and 2x + 1 are prime}, then J is:Class 10SetsSets and their representationsLevel 2Medium MathematicsWhich elements belong to B = {x : x is a positive divisor of 36 and x is not prime}?Class 10SetsSets and their representationsLevel 1Easy MathematicsIf D₃ = {x ∈ ℕ : x is prime and 20 < x < 30}, then what is D₃?Class 10SetsSets and their representationsLevel 1Easy MathematicsWhich is the set C₃ = {x ∈ ℕ : x is a factor of 9 and x is prime}?Class 10SetsSets and their representationsLevel 1Easy MathematicsWhich option represents C₁ = {2, 3, 5, 7, 11} most accurately in set-builder form?Class 10SetsSets and their representationsLevel 1Medium MathematicsWhich option is not a finite set?Class 10SetsThe Empty Set, Finite and Infinite Sets, Equal SetsLevel 1Medium MathematicsWhich is the correct roster form of L = {x : x is a two-digit prime number and x < 15}?Class 10SetsSets and their representationsLevel 1Medium MathematicsWhich option correctly represents the set A = {x ∈ ℕ : x < 10 and x is prime} in roster form?Class 10SetsSets and their representationsLevel 1Easy MathematicsWhat is the roster form of S₁ = {x : x ∈ ℕ, x is a factor of 45 and x + 2 is prime}?Class 10SetsSets and their representationsLevel 3Easy MathematicsIf F₁ = {x : x ∈ ℕ, x has exactly two distinct positive factors and x < 15}, what is F₁?Class 10SetsSets and their representationsLevel 3Easy MathematicsIf Y = {x : x ∈ N, x is prime, x + 2 is also prime, and x < 20}, what is Y?Class 10SetsSets and their representationsLevel 3Medium MathematicsIf T₁ = {x : x ∈ ℕ, x < 10, and both x and 10 − x are prime}, what is T₁?Class 10SetsSets and their representationsLevel 2Medium MathematicsIf R₁ = {x : x is a two-digit prime number and x < 20}, which is the roster form of R₁?Class 10SetsSets and their representationsLevel 2Easy MathematicsWhat is the roster form of X = {x : x ∈ ℕ, x ≤ 10, and x is neither prime nor composite}?Class 10SetsSets and their representationsLevel 2Medium