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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 of the following sets is empty?Class 9Number SystemsGeneral chapter practiceEasy MathematicsWhich element does not belong to K = {x : x ∈ N, x is a multiple of 6 less than 40}?Class 9Number SystemsGeneral chapter practiceEasy MathematicsIf J = {x : x ∈ Z and |x| ≤ 2}, what is its roster form?Class 9Number SystemsEasy MathematicsWhich description correctly represents I = {1, 8, 27, 64}?Class 9Number SystemsEasy MathematicsHow many elements are in H = {x : x ∈ N, 10 < x < 20, and x is even}?Class 9Number SystemsGeneral chapter practiceEasy MathematicsIf G = {x : x ∈ N and x divides both 12 and 20}, what is G?Class 9Number SystemsMedium MathematicsWhich pair of sets is not equal?Class 9Number SystemsEasy MathematicsWhich statement is correct about F = {x : x ∈ W and x² = 25}?Class 9Number SystemsEasy MathematicsIf E = {x : x is a positive factor of 18 and x is prime}, what is E?Class 9Number SystemsGeneral chapter practiceEasy MathematicsWhat is the roster form of D = {x : x ∈ N and x² - 5x + 6 = 0}?Class 9Number SystemsGeneral chapter practiceMedium MathematicsWhich collection is a well-defined set?Class 9Number SystemsEasy MathematicsIf C = {x : x ∈ Z and -4 ≤ x ≤ 1}, what is n(C)?Class 9Number SystemsEasy MathematicsWhich is the correct set-builder form for B = {0, 3, 6, 9, 12}?Class 9Number SystemsGeneral chapter practiceMedium MathematicsIf A = {x : x ∈ N and 3 ≤ x < 9}, which is the roster form of A?Class 9Number SystemsEasy MathematicsLet W = {x : x ∈ N and x is less than the smallest two-digit number}. What is its roster form?Class 9Number SystemsGeneral chapter practiceEasy MathematicsIf V = {x : x ∈ Z and |x| < 3}, what is V?Class 9Number SystemsGeneral chapter practiceEasy MathematicsWhich statement about U = {x : x is an English word with four letters} is correct?Class 9Number SystemsEasy MathematicsWhich option correctly gives T = {x : x ∈ N, x < 10 and x is divisible by 3}?Class 9Number SystemsEasy MathematicsIf S = {x : x ∈ N and x < 1}, where N = {1, 2, 3, ...}, what type of set is S?Class 9Number SystemsEasy MathematicsWhich option represents a set equal to R = {1, 4, 9, 16, 25}?Class 9Number SystemsGeneral chapter practiceEasy