# Rational Numbers & Irrational Numbers Quiz

10 Questions | Total Attempts: 41  Settings  How do you know if a number is rational or irrational? Is 4/5 rational or irrational? Check out our online quiz and attempt some amazing questions to unleash the maths expert.

• 1.
The decimal expansion of an irrational number may be
• A.

Terminating

• B.

Recurring

• C.

Either terminating or non- terminating

• D.

Non-terminating and non-recurring

• 2.
The product of a rational and an irrational numbers is:
• A.

Always an integer

• B.

Always an irrational number

• C.

Always a rational number

• D.

Sometimes rational and sometimes irrational

• 3.
The number  is
• A.

An irrational number

• B.

A rational number

• C.

not a natural number

• D.

None of these

• 4.
For rationalising the denominator of the expression  we multiply and divide by
• A.

• B.

12

• C.

• D.
• 5.
On simplifying  we get
• A.

12

• B.
• C.
• D.
• 6.
0.6666  in p/q form is
• A.

6/99

• B.

2/3

• C.

3/5

• D.

1/66

• 7.
Which of the following is irrational?
• A.

0.14

• B.

0.24014001400014…

• C.

0.14161416......

• D.

0.1416

• 8.
The square root of which number is rational
• A.

7

• B.

1.01

• C.

0.04

• D.

13

• 9.
(16)3/4 is equal to
• A.

2

• B.

4

• C.

8

• D.

16

• 10.
A rational number between  is
• A.

1/14

• B.

2/21

• C.

5/14

• D.

5/21

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