Test: Rational Numbers

# Test: Rational Numbers

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## 20 Questions MCQ Test Mathematics (Maths) Class 9 | Test: Rational Numbers

Test: Rational Numbers for Class 9 2022 is part of Mathematics (Maths) Class 9 preparation. The Test: Rational Numbers questions and answers have been prepared according to the Class 9 exam syllabus.The Test: Rational Numbers MCQs are made for Class 9 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Rational Numbers below.
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Test: Rational Numbers - Question 1

### If  = 3.162, then the value of

Detailed Solution for Test: Rational Numbers - Question 1

Test: Rational Numbers - Question 2

### Which of the following is the product of 7/8 and -4/21?

Detailed Solution for Test: Rational Numbers - Question 2

7/8 x -4/21 = -1/6

Option B is the correct answer.

Test: Rational Numbers - Question 3

### Rationalise the denominator of .

Detailed Solution for Test: Rational Numbers - Question 3

5 / (3 + √8)  x  ( (3 - √8) /  (3 - √8)

=  5 ( 3 - √8)/(32 - 8 )

= 5 ( 3 - √8 ) / 9 - 8  = 15 - 5√8

So option C is correct.

Test: Rational Numbers - Question 4

Expression of 2.2323… in the form of a/ b is ________.

Test: Rational Numbers - Question 5

The rational number between 1 and 2 is

Detailed Solution for Test: Rational Numbers - Question 5

Remember the general formula to find rational number between two

given number 1/2(a+b)[where a, b are given numbers]

A rational number between 1 and 2 is 1/2(1+2)=3/2

Test: Rational Numbers - Question 6

The sum of the digits of a number is subtracted from the number, the resulting number is always divisible by:

Detailed Solution for Test: Rational Numbers - Question 6

Let the three digit number be 439
The sum of digits =16
Difference =439−16=423 which is divisible by 9.

Test: Rational Numbers - Question 7

Which of the following lies between 0 and -1?

Test: Rational Numbers - Question 8

is

Test: Rational Numbers - Question 9

p/q is a rational number, so p and q must be

Test: Rational Numbers - Question 10

Which of the following is the product of 7/8 and -4/21?

Detailed Solution for Test: Rational Numbers - Question 10

7 / 8 x -4 / 21 = -1/6

So answer is option A .

Test: Rational Numbers - Question 11

From the choices given below mark the co-prime numbers

Test: Rational Numbers - Question 12

All the integers are

Detailed Solution for Test: Rational Numbers - Question 12

The rational numbers include all the integers, plus all fractions, or terminating decimals and repeating decimals. Every rational number can be written as a fraction a/b, where aand b are integers. For example, 3 can be written as 3/1, -0.175 can be written as -7/40, and 1 1/6 can be written as 7/6. All natural numbers, whole numbers, and integers are rationals, but not all rational numbers are natural numbers, whole numbers, or integers.

Test: Rational Numbers - Question 13

The fraction equivalent of  is

Detailed Solution for Test: Rational Numbers - Question 13

Let x = 0.234234234.........
(1) Then , multiply both side with 1000 1000x = 234.234234......(2) Now Eq.(2)-(1) 1000x-x = 234.234234- 0.234234 999x = 234 x = 234/999

Test: Rational Numbers - Question 14

Between 3 and 4 there are

Detailed Solution for Test: Rational Numbers - Question 14

There is no single number between 3 and 4, there is an infinite amount of numbers. If you are asking for INTEGERS, there are none. If not, you can have unlimited numbers between 3 and 4. For example, a number could be 3.0000000000000000005 or 3.9999999999999997.

Test: Rational Numbers - Question 15

in the form of fraction is

Detailed Solution for Test: Rational Numbers - Question 15

X=0.230769
(1) 1000000=230769.230769

(2) subtracting

(1) from (2) 230769 =9999999x then, x =230769/9999999 =3/13

Test: Rational Numbers - Question 16

Every rational number is

Detailed Solution for Test: Rational Numbers - Question 16

Real numbers are the numbers that can be placed on number line
And rational number can be placed on number line so all rational numbers are real number.

Test: Rational Numbers - Question 17

The product of two numbers is -20/9. If one of the numbers is 4, find the other.

Test: Rational Numbers - Question 18

in the form of a fraction is

Detailed Solution for Test: Rational Numbers - Question 18

Test: Rational Numbers - Question 19

If  5/13 = 0.384615……, then the value of 10/13 _____

Test: Rational Numbers - Question 20

What should be added to -5/4 to get -1?

Detailed Solution for Test: Rational Numbers - Question 20

- 5 / 4 + x = -1

x = -1 + 5 / 4

x = (-4 + 5) / 4

x = 1 / 4

## Mathematics (Maths) Class 9

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## Mathematics (Maths) Class 9

88 videos|397 docs|109 tests