Math 9 Chapter 2 Real and Complex Numbers-1

Math 9 Chapter 2 Real and Complex Numbers-1

1. The numbers 1,2,3,… which are used for counting certain objects are called?

a) Rational numbers
b) Natural numbers
c) Irrational numbers
d) Whole numbers

2. Integers are represented by?

a) None of these
b) Z= {….-2,-1, 0, 1, 2,….}
c) W= {0,1,2,3…..}
d) N= {1,2,3….}

3. All numbers of the form p/q where p, q are integers and q is not zero called?

a) Irrational number
b) Rational number
c) Integer
d) Real number

4. The numbers which cannot be expressed as quotient of integers are called?

a) Rational numbers
b) Whole numbers
c) Natural numbers
d) Irrational numbers

5. The union of rational and irrational number is?

a) Integers
b) Real number
c) Natural numbers
d) Quotient numbers

6. Integers are the subsets of?

a) Whole number
b) Rational numbers
c) Natural number

7. Rational and Irrational numbers are …… sets?

a) Adjoin sets
b) Both are false
c) Both are true
d) Disjoint sets

8. For each prime number P, (P) ^1/2 is?

a) Irrational number
b) Integer
c) Rational number
d) Whole number

9. Terminal decimal has ………. Number of digits?

a) All of these
b) Zero
c) Infinite
d) Finite

10. The starting point of whole numbers is?

a) 2
b) -1
c) 0
d) 1

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