ICSE 9/ICSE Class: 9 Rational and Irrational Numbers Sample Test,Sample questions

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Question: 
A number ‘r’ is called a _______ if it can be written in the form p/q, where p and q are integers and q not equal to 0.
a) Irrational Number
b) Rational Number
c) None of these
d) A number ‘r’ is called a _______ if it can be written in the form p/q, where p and q are integers and q not equal to 0.

1.Irrational Number

2.Rational Number

3.None of these

4.Real Number

Question: 
Are the square roots of all positive integers irrational?

1.Can not determine

2.No

3.None of these

4.Yes

Question: 
Are the square roots of all positive integers real numbers?

1.Yes

2.None of these

3.Can not determine

4.No

Question: 
Classify the following numbers as rational or irrational : 0.377675220922

1.Rational

2.Can not determine

3.None of these

4.Irrational

Question: 
Classify the following numbers as rational or irrational : 0.555555...

1.Irrational

2.Can not determine

3.None of these

4.Rational

Question: 
Classify the following numbers as rational or irrational : 0.555555...

1.Irrational

2.Can not determine

3.Rational

4.None of these

Question: 
Classify the following numbers as rational or irrational : 0.765716124276

1.Irrational

2.Can not determine

3.Rational

4.None of These

Question: 
Classify the following numbers as rational or irrational : sqrt{144} 
144
​

1.None of these

2.Can not determine

3.Rational

4.Irrational

Question: 
Classify the following numbers as rational or irrational : sqrt{22} 
22
​

1.Irrational

2.Rational

3.Can not determine

4.None of these

Question: 
Classify the following numbers as rational or irrational : sqrt{23} 
23

1.Rational

2.Irrational

3.Can not determine

4.None of These

Question: 
Classify the following numbers as rational or irrational : sqrt{25} 
25

1. None of these

2.Irrational

3.Can not determine

4.Rational

Question: 
Every point on the number line represents a unique ____.

1.None of these

2.Real Number

3.Irrational Number

4.Rational Number

Question: 
Every real number is represented by a unique point on the _____

1.Number line

2.None of these

3.Irrational Number

4.Rational Number

Question: 
Give an example of the square root of a number that is a rational number.

1.20

2.15

3.25

4.5

Question: 
State whether the following statements are true or false: Every irrational number is a real number.

1.None of these

2.True

3.Can not determine

4.False

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