Number System

The decimal expansion of an irrational number is

• Terminating

• Recurring

• Either terminating or non- terminating 

• Non-terminating and non-recurring

Which of the following is not an irrational number?

• 1.787887888............

Which of the following is an irrational number:

• 2.12222

• 2.1211211121112..........

• 2.121212.......

• 2.1211211121112

Every rational number is

• a natural number

• an integer

• a whole number

• a real number

• 3

• a rational number

• a natural number

• an irrational number

• an integer