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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।

MathematicsIf U = {1, 2, ..., 24}, A is the set of odd numbers in U, and B is the set of prime numbers in U, what is A ∩ B′?Class 10SetsComplement of a Set and Its PropertiesLevel 21Medium MathematicsIf U = {1, 2, ..., 36} and A = {x : x ∈ U and x is not prime}, how many elements are in A'?Class 10SetsComplement of a Set and Its PropertiesLevel 21Medium MathematicsIf U={1,2,…,18} and A is the set of primes in U, which set of multiples of 3 lies in A′?Class 10SetsComplement of a Set and Its PropertiesLevel 10Medium MathematicsIf U = {1,2,...,22} and A = {x ∈ U : x is prime}, how many odd numbers are in A′?Class 10SetsComplement of a Set and Its PropertiesLevel 20Easy MathematicsIf U = {1, 2, ..., 25} and A = {x ∈ U : 5 is a divisor of x}, how many prime numbers are in A′?Class 10SetsComplement of a Set and Its PropertiesLevel 20Easy MathematicsLet U = {1, 2, …, 30}, A = {x ∈ U : x is even}, and B = {x ∈ U : x is prime}. What is A′ ∩ B?Class 10SetsComplement of a Set and Its PropertiesLevel 20Easy MathematicsIf the roots of the quadratic equation \(x^2-10x+k=0\) are distinct prime numbers, what is the value of \(k\)?Class 10Quadratic EquationsRoots of a Quadratic EquationLevel 33Hard MathematicsIf U = {1, 2, ..., 20}, A = {x : x ∈ U and x is even}, and B = {x : x ∈ U and x is prime}, what is A′ ∩ B?Class 10SetsComplement of a Set and Its PropertiesLevel 19Medium MathematicsIf U = {1, 2, ..., 25} and A is the set of non-prime elements of U, what is A'?Class 10SetsComplement of a Set and Its PropertiesLevel 19Easy MathematicsLet \(U=\{1,2,3,\ldots,20\}\) and \(A=\{x:x\in U\text{ and }x\text{ is prime}\}\). What is \(A'\), the complement of \(A\) with respect to \(U\)?Class 10SetsComplement of a Set and Its PropertiesLevel 19Easy MathematicsIf U = {1, 2, ..., 30}, A = {x : x is even}, and B = {x : x is prime}, what is |A' ∩ B'|?Class 10SetsComplement of a Set and Its PropertiesLevel 21Medium MathematicsIf \(U=\{x:x\in\mathbb N, x\le 35\}\) and \(A=\{x:x\text{ is a composite number}\}\), what type of elements will be in \(A'\)?Class 10SetsComplement of a Set and Its PropertiesLevel 20Medium MathematicsIf U = {1,2,…,20}, A = {x : x is even}, and B = {x : x is prime}, how many elements are in A′ ∩ B′?Class 10SetsComplement of a Set and Its PropertiesLevel 20Medium MathematicsIf \(U=\{1,2,\ldots,40\}\), \(A\) is the set of prime numbers, and \(B\) is the set of odd numbers, what is \(|A'\cap B|\)?Class 10SetsComplement of a Set and Its PropertiesLevel 20Medium MathematicsIf \(U=\{x:x\in\mathbb{Z},0\le x\le15\}\) and \(A=\{x:x\text{ is prime}\}\), which element must be in \(A'\)?Class 10SetsComplement of a Set and Its PropertiesLevel 19Easy MathematicsIf U = {1, 2, ..., 30}, A is the set of prime numbers and B is the set of multiples of 3, then how many elements are in (A ∪ B)'?Class 10SetsComplement of a Set and Its PropertiesLevel 19Medium MathematicsIf U = {1,2,3,4,5,6,7,8,9} and A = {x ∈ U : x is prime}, what is the complement Aᶜ with respect to U?Class 10SetsComplement of a Set and Its PropertiesLevel 21Easy MathematicsIf \(U=\{1,2,3,\ldots,20\}\), \(A=\{x:x\text{ is prime}\}\), and \(B=\{x:x\text{ is odd}\}\), what is \(A^c\cap B\)?Class 10SetsComplement of a Set and Its PropertiesLevel 20Medium MathematicsIf U = {x ∈ ℕ | 1 ≤ x ≤ 20} and A = {x ∈ U | x is a prime number}, how many elements does Aᶜ contain?Class 10SetsComplement of a Set and Its PropertiesLevel 19Medium MathematicsIf U = {1, 2, 3, 4, 5, 6, 7, 8, 9} and A = {2, 3, 5, 7}, what is Aᶜ?Class 10SetsComplement of a Set and Its PropertiesLevel 20Easy