Decimal representation of rational numbers - class-IX

Understanding integral and fractional parts of decimal numbers

20 Questions Published

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Questions

Question 1 Multiple Choice (Single Answer)

The number having no reciprocal is

$2$
$1$
$-1$
$0$

Question 2 Multiple Choice (Single Answer)

The decimal part of $9.99$ is

$0.99$
$9$
$8$
$0.98$

Question 3 Multiple Choice (Single Answer)

The integral part of $3.89$ is

$3$
$0.89$
$4$
None of these

Question 4 Multiple Choice (Single Answer)

The integral part of $4.20$ is

$4$
$2$
$3$
None of these

Question 5 Multiple Choice (Single Answer)

The decimal part of $4.20$ is

$4$
$0.20$
$2$
None of these

Question 6 Multiple Choice (Single Answer)

The decimal part of $3.89$ is

$3$
$0.79$
$0.89$
None of these

Question 7 Multiple Choice (Single Answer)

The integral part of $9.99$ is

$9$
$8$
$7$
None of these

Question 8 Multiple Choice (Single Answer)

The integral part of $63.281$ is?

$63$
$0.281$
$26$
$5$

Question 9 Multiple Choice (Single Answer)

Fractional Part of $2.056$ is?

$0.056$
$0.05$
$0.5$
$0.66$

Question 10 Multiple Choice (Single Answer)

The fractional part of $28.13$ is?

$0.13$
$28.1$
$2.81$
$13.28$

Question 11 Multiple Choice (Single Answer)

The integral part of $78.027$ is?

$24$
$0.27$
$78$
$38$

Question 12 Multiple Choice (Single Answer)

The number obtained by interchanging integral part and fractional part of $45.01$ is?

$1.45$
$10.45$
$11.45$
$1.045$

Question 13 Multiple Choice (Single Answer)

Integral part of $034.098$ is :

$34$
$09$
$098$
$0.098$

Question 14 Multiple Choice (Single Answer)

Number obtained by incrementing an integral part of $27.25$ by $1$ is?

$35.26$
$28.25$
$26.25$
$16.25$

Question 15 Multiple Choice (Single Answer)

The Number obtained by interchanging the integral and fractional part of $50.23$ is?

$23.05$
$23.5$
$32.05$
$23.4$

Question 16 Multiple Choice (Single Answer)

The number obtained on interchanging the integral and fractional part of $26.081$ is

$18.026$
$260.81$
$81.26$
$81.62$

Question 17 Multiple Choice (Single Answer)

Number of solutions of the equation $[2x]-3{2x}=1$ is?

(where $[\cdot]$ and ${\cdot }$ denote greatest integer an fractional part function respectively).

Question 18 Multiple Choice (Single Answer)

Integral part of $05.89$ is?

$5$
$89$
$2$
$3$

Question 19 Multiple Choice (Single Answer)

If a and b are any two such real numbers that ab $ = 0 $ , then

$a = 0, b \leq 0$
$b = 0, a \leq 0$
a = 0 or b = 0 or both
$a = b$ and $b = 0$

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