1) What is the smallest natural number? a) 0 b) -5 c) 1 d) Not defined 2) All whole numbers are natural numbers? a) True b) False 3) 23.414 is a ------ no a) rational b) irrational 4) Smallest odd composite no is a) 9 b) 4 c) 2 d) 11 5) 1 is  a) a prime number b) a composite number c) Neither a prime not a composite number d) None of these 6) 3.1415926535-------- is a ------- no a) rational b) irrational 7) Smallest integer is... a) -11 b) -101 c) 0 d) None of these 8) Firsr perfect no is a) 7 b) 6 c) 29 d) 28 9) square root of 841 is a) rational b) irrational 10) every whole no is an integer a) true b) false

Number System

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