1) Which one of the following is a correct statement a) Decimal expansion of a rational number is terminating.  b) Decimal expansion of a rational number is non-terminating. c) Decimal expansion of a irrational number is terminating. d) Decimal expansion of a irrational number is non-terminating and non-repeating. e) Decimal expansion of a irrational number is a rational number and repeating number. f) Decimal expansion of a rational number is terminating. 2) Which of the following is irrational? a) √4/9 b) 4/5 c) √7 d) √81 3) Which one of the following is irrational? a) 0.14 b) √0.416 c) √0.1416 d) 0.101400140014.... 4) Every point on a number line represents. a) A unique real number b) A natural number c) A rational number d) An irrational number 5) Which one of the following a correct Statement a) Every natural number is a whole number b) Every integer is a whole number c) Every rational number is a whole number d) Every irrational number is a whole number 6) If n is a natural number, then √n is a) Always a natural number b) Always a rational number  c) Always an irrational number d) Sometimes a rational number and sometimes an irrational number 7) Which of the following is a correct statement. a) Sum of two rational numbers is always irrational b) Sum of a rational and an irrational number is always an irrational number c) Square of an irrational number is always a rational number d) Sum of two rational numbers can never be an integer 8) The number 0.318564318564318564 a) A natural number b) An integer c) a rational number d) An irrational number 9) Which of the following numbers can be represented as non-terminating,repeating decimals? a) 39/24 b) 3/16 c) 3/11 d) 137/25 10) The smallest rational number by which 1/3 should be multiplied so that it's decimal expansion terminates after one place of decimal, is a) 1/10 b) 3/10 c) 3 d) 30

NUMBER SYSTEM -9 MATH- CONCEPT

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