Rational and irrational numbers

The decimal expansion of an irrational number is

• Repeating

• Terminating

• Non- repeating

The value of 1.999....... in the form p/q.

• 2

• 19/10

• 1/9

• 1999/1000

Every rational number is a

• Whole number

• Real number

• Natural number

• Integer

Which of these is an irrational number?

• 16.9

• 16.9999...........

• $\sqrt{\left(1.69\right)}$

• 16.9238349756.........

What is the integer between  $\sqrt{3}$  and  $\sqrt{5}$  ?

• 5

• 3

• 1

• 2

The decimal expansion of the number  $\sqrt{2}$  is

• Terminating decimal

• 1.41421.........

• Non-terminating recurring decimal

• A finite decimal

Express 9.89898......... in p/q form

• 989/990

• 980/990

• 980/99

• 9/10

Which of the following is irrational?

• $\sqrt{81}$

• $\sqrt{7}$

• $\sqrt{12}$ / $\sqrt{3}$

• $\sqrt{\left(\frac{4}{9}\right)}$

Which of the following have only 2 and 5 as prime factors?

• 20

• 30

• 35

• 45

 $\pi$  is

• a rational number

• a whole number

• an irrational number

• a natural number