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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 is incorrect?Class 9Number SystemsReal NumbersMedium MathematicsA student claims that the product of any two irrational numbers is always irrational. Which pair of numbers disproves this claim?Class 9Number SystemsReal NumbersMedium MathematicsA student classifies the number 0.101001000100001... as rational because it contains only the digits 0 and 1. Evaluate this claim correctly.Class 9Number SystemsReal NumbersMedium MathematicsA square tile has a side length of 1 metre. What will be the length of its diagonal, and what type of number is it?Class 9Number SystemsReal NumbersMedium MathematicsA student claims that the sum of two irrational numbers is always irrational. Which of the following examples disproves this statement?Class 9Number SystemsReal NumbersMedium MathematicsA student claims that the sum of two irrational numbers is always irrational. Which of the following examples disproves this claim?Class 9Number SystemsReal NumbersMedium MathematicsWhat is the value of √27 × √12?Class 9Common QuestionsSquares and Square RootsMedium MathematicsWhich of the following statements correctly describes the decimal expansion of irrational numbers?Class 9Number SystemsReal NumbersMedium MathematicsReema says that the decimal number 0.101001000100001... is rational because it uses only the digits 0 and 1. Which is the correct evaluation of her statement?Class 9Number SystemsReal NumbersMedium MathematicsA square garden has an area of 2 square metres. Which statement correctly gives the length of its side and identifies it as rational or irrational?Class 9Number SystemsReal NumbersMedium MathematicsWhat is obtained by simplifying (√147)?Class 9Number SystemsReal NumbersMedium MathematicsA student classifies the number 0.101001000100001… as rational because it contains only the digits 0 and 1. Which is the correct evaluation of the student's conclusion?Class 9Number SystemsReal NumbersEasy MathematicsWhich of the following statements is correct on the basis of decimal expansions?Class 9Number SystemsReal NumbersEasy MathematicsA student says that \(\sqrt{2}+\sqrt{8}\) is a rational number because both terms contain square roots. Which evaluation of this statement is correct?Class 9Number SystemsReal NumbersEasy MathematicsWhere is the real number −1.25 located on the number line?Class 9Number SystemsNumber lineEasy MathematicsWhat is the value of ((√15)²)?Class 9Number SystemsReal NumbersEasy MathematicsIf (3.14159...) is non-terminating and non-repeating, what type of number is it?Class 9Number SystemsIrrational numbersEasy MathematicsWhat type of number is (0.\overline{45})?Class 9Number SystemsDecimal representationEasy MathematicsWhat is the decimal form of \(\frac{13}{20}\)?Class 9Number SystemsDecimal representationEasy MathematicsWhat is obtained by converting 3.125 into a fraction?Class 9Number SystemsDecimal representationEasy