Tag: maths

Questions Related to maths

Numeral for five hundred million and six is:

roman numbers and numbers upto hundred roman numerals knowing our numbers maths

  1. $500006$

  2. $50000006$

  3. $500000006$

  4. $50006$

Show answer
Correct Option: C
Explanation:

Five hundred million and six can be written in numerical form as:

$500000006$.
Hence, the answer is $500000006$.

Roman numeral for the smallest four digit number is:

roman numbers and numbers upto hundred roman numerals knowing our numbers maths

  1. X

  2. M

  3. C

  4. D

Show answer
Correct Option: B
Explanation:

The smallest four digit number is $1000$.

And $1000$ is written in roman numeral as M.
Hence, the answer is M.

Numerals that can be repeated in Roman system are

roman numbers and numbers upto hundred roman numerals knowing our numbers maths

  1. I, X and C

  2. I, V and X

  3. V, L and D

  4. D

Show answer
Correct Option: A
Explanation:

V can be used once in the Roman system
Similarly, L and D can be used only once in the Roman System
But I, X and C can be repeated in the Roman system to represent certain number.
Thus, the numerals that can be repeated in Roman system are I, X and C.

Raju is $22$ years old and Ramu is $19$ years old. Write the difference of their ages in Roman system.

roman numbers and numbers upto hundred roman numerals knowing our numbers maths

  1. III

  2. XXDI

  3. XXXLII

  4. XXXLL

Show answer
Correct Option: A
Explanation:

Raju's age is $22$ years and Ramu's age is $19$ years.

The difference between their ages is $22-19=3$ years
And $3$ can be written in roman value as III.

The Roman numeral for the greatest two digit number is:

roman numbers and numbers upto hundred roman numerals knowing our numbers maths

  1. IC

  2. LIL

  3. ICCCCD

  4. XCIX

Show answer
Correct Option: D
Explanation:

The largest two digit number is $99$

In roman value, $99$ can be expressed as XCIX.
Hence, the answer is XCIX.

Express "XLIX" in English numeral.

roman numbers and numbers upto hundred roman numerals knowing our numbers maths

  1. $69$

  2. $49$

  3. $89$

  4. $59$

Show answer
Correct Option: B
Explanation:

In Roman numeral form, 

$50 = L$
$\Rightarrow 40 = XL$

Also, $9 = IX$

$\Rightarrow XLIX = 49$

Write 'Ninety- Six' in Roman numerals.

roman numbers and numbers upto hundred roman numerals knowing our numbers maths

  1. $XCVI$

  2. $4XVII$

  3. $XCV$

  4. $XCVII$

Show answer
Correct Option: A
Explanation:

In Roman numeral form, 

$90 = XC$
$6 = VI$

$\Rightarrow$ Ninety-six $= XCVI$

 Roman number representation of $655$ is

roman numbers and numbers upto hundred roman numerals knowing our numbers maths

  1. DCLV

  2. CLV

  3. XXI

  4. ML

Show answer
Correct Option: A
Explanation:

Converting to Roman

 Iteration  Decimalnumber  Highest decimal  Highest roman Tempoaray result 
 $1$  $655$  $500$  $D$  $D$
 $2$   $155$ $100$   $C$  $DC$
 $3$   $55$ $50$  $L$  $DCL$
 $4$   $5$ $5$   $V$  $DCLV$

$655=DCLV$

So option $A$ is correct.

 Numerical form representation of DCCXXII is?

roman numbers and numbers upto hundred roman numerals knowing our numbers maths

  1. 120

  2. 115

  3. 722

  4. 730

Show answer
Correct Option: C
Explanation:
 Iteration  Highest Roman  Highest Numeral  Temporary'Number
 $1$  $D$  $500$  $500$
 $2$  $C$  $100$  $600$
 $3$  $C$  $100$  $700$
 $4$  $X$  $10$  $710$
 $5$  $X$  $10$  $720$
 $6$  $X$  $1$  $721$
 $7$  $I$  $1$  $722$

$DCCXXII=722$

So none of the options are correct

Perform the following operations and write the answer in Roman form  
$17 + (8 - 5) 5$

roman numbers and numbers upto hundred roman numerals knowing our numbers maths

  1. XI

  2. XXXII

  3. XV

  4. XXV

Show answer
Correct Option: B
Explanation:


$17+(8-5)5$

$17+(3)5$
$17+15$
$32$
Converting to roman

|  Iteration |  Decimal     number |  Highest decimal value |  Highest roman numeral | Number  | | --- | --- | --- | --- | --- | |  $1$ |  $32$ |  $10$ |  $X$ |  $X$ | |  $2$ |   $22$ |  $10$ |  $X$ |  $XX$ | |  $3$ |   $12$ |  $10$ |  $X$ |  $XXX$ | |  $4$ |   $2$ |  $1$ |  $I$ |  $XXXI$ | |  $5$ |   $1$ |  $1$ |  $1$ |  $XXXII$ |

 

So option $B$ is correct.