1) For any three rational numbers a, b and c, a+ ( b + c ) = ____________ a) ( a + b ) - c b) ( a - b ) + c c) ( a + b ) + c d) ( a - b ) - c 2) Sum of two rational numbers is a _____________ a) negative number b) none of these c) irrational number d) rational number 3) Identify the reciprocal of 3 a) 3/1 b) 1/3 c) 2/3 d) 3/3 4) Write the rational number that is equal to its reciprocal a) 1 b) 2 c) 0 d) -2 5) While representing natural numbers the number line a) extends indefinitely to the right side of 1 b) extends indefinitely to the left side of 1 c) extends indefinitely to the right side of 0 d) extends indefinitely on both the side of 0 6) Which of the following is the largest set of numbers  a) natural numbers b) whole numbers c) real numbers d) rational numbers 7) _______ is the only rational number which does not have a reciprocal a) 1 b) -1 c) -100 d) 0 8) Reciprocal of any number lies between _________ a) 0 and 1 b) 1 and infinity c) 0 and -1 d) 100 and 1000 9) The value of 1/2 x 3/5 is equal to _________ a) 1/2 b) 3/10 c) 3/5 d) 4/7 10) How is -28/84 expressed as a rational number with numerator 4? a) 4/7 b) -4/12 c) 4/12 d) 4/-7

Rational Numbers

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