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Number Systems

Class 9 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsWhich option correctly gives H = {x : x ∈ N, x is not a factor of 8 and x ≤ 8}?Class 9Number SystemsMedium MathematicsIf G = {x : x ∈ Z and -1 < x < 4}, which element belongs to G?Class 9Number SystemsEasy MathematicsWhat is F = {x : x ∈ N and x is a composite number less than 15}?Class 9Number SystemsEasy MathematicsWhich statement is correct for E = {p, q, r, s}?Class 9Number SystemsEasy MathematicsIf D = {x : x is a positive factor of 36 and x > 6}, what is D?Class 9Number SystemsEasy MathematicsWhich set is C = {x : x ∈ N, x is a multiple of 5 between 10 and 30}?Class 9Number SystemsEasy MathematicsIf B = {x : x ∈ W and 3x ≤ 12}, what is B?Class 9Number SystemsEasy MathematicsWhich option gives the correct roster form of A = {x : x ∈ N and 2x + 1 < 10}?Class 9Number SystemsGeneral chapter practiceMedium MathematicsWhat is the roster form of W = {x : x ∈ N, x is a multiple of 9 and x < 50}?Class 9Number SystemsEasy MathematicsIf V = {x : x ∈ Z and x² < 5}, how many elements are in V?Class 9Number SystemsIrrational numbersMedium MathematicsWhich description correctly represents U = {5, 10, 15, 20, 25}?Class 9Number SystemsEasy MathematicsFor T = {x : x is a positive factor of 21}, what is n(T)?Class 9Number SystemsGeneral chapter practiceEasy MathematicsIf S = {x : x ∈ N and x² ≤ 36}, what is the greatest element of S?Class 9Number SystemsEasy MathematicsWhich option gives a correct notation for the empty set?Class 9Number SystemsEasy MathematicsIf R = {x : x ∈ N, x is divisible by 7 and x ≤ 35}, which element belongs to R?Class 9Number SystemsGeneral chapter practiceEasy MathematicsWhat is the roster form of Q = {x : x ∈ Z, x is odd and -5 < x < 5}?Class 9Number SystemsGeneral chapter practiceEasy MathematicsWhich option gives the correct set-builder form of P = {2, 4, 8, 16, 32}?Class 9Number SystemsGeneral chapter practiceMedium MathematicsIf N = {x : x ∈ W and x ≤ 4}, which statement is true?Class 9Number SystemsGeneral chapter practiceEasy MathematicsWhat is M = {x : x ∈ N, x is a two-digit prime number and x < 20}?Class 9Number SystemsGeneral chapter practiceEasy MathematicsIf L = {x : x is a positive multiple of 11 less than 100}, what is n(L)?Class 9Number SystemsGeneral chapter practiceEasy