Sample QuestionsNumber System questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Mark $(\checkmark)$ against the correct answer: What comes just before $1000000?$
- A
$99999$
- ✓
$999999$
- C
$9999999$
- D
Answer: B.
View full solution →Mark $(\checkmark)$ against the correct answer in the following:Which of the symbols are never repeated?
- A
$V, X $ and $C.$
- B
$V, X$ and $D.$
- ✓
$V, L$ and $D.$
- D
$L, K$ and $C.$
Answer: C.
View full solution →Mark $(\checkmark)$ against the correct answer: The place value of $6$ in the numeral $48632950$ is:
- A
$6$
- B
$632950$
- ✓
$600000$
- D
$486$
Answer: C.
View full solution →Mark $(\checkmark)$ against the correct answer: Which of the following is not meaningful?
- A
$XIV$
- ✓
$XVV$
- C
$XIII$
- D
$XXII$
Answer: B.
View full solution →Mark $(\checkmark)$ against the correct answer: The smallest counting number is:
Answer: B.
View full solution →Assertion (A): The number 6358 rounded to the nearest hundred is 6400.
Reason (R): In a number, if the digit at the tens place is 5 then the number is rounded to the nearest hundred by increasing the hundreds digit by 1 and replacing each digit on its right by 0.
- ✓
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- B
Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
- C
Assertion (A) is true but Reason (R) is false.
- D
Assertion (A) is false but Reason (R) is true.
Answer: A.
View full solution →Assertion (A): In Roman numerals, CM is equal to 900.
Reason (R): In Roman numerals, a smaller numeral written to the right of a larger numeral is always added to the larger numeral.
- A
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- ✓
Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
- C
Assertion (A) is true but Reason (R) is false.
- D
Assertion (A) is false but Reason (R) is true.
Answer: B.
View full solution →Assertion (A): The number 54190 is greater than 39816.
Reason (R): Out of two given numbers, the number whose leftmost digit is greater than the leftmost digit of the other is always greater of the two.
- A
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- B
Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
- ✓
Assertion (A) is true but Reason (R) is false.
- D
Assertion (A) is false but Reason (R) is true.
Answer: C.
View full solution →Assertion (A): The Hindu-Arabic number system differs from the international number system due to the fact that it uses 10 digits.
Reason (R): The 10 digits used in the Hindu-Arabic number system are 0, 1, 2, 3, 4, 5, 6, 7. 8 and 9.
- A
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- B
Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
- C
Assertion (A) is true but Reason (R) is false.
- ✓
Assertion (A) is false but Reason (R) is true.
Answer: D.
View full solution →The mass of brick is $2\ kg\ 750\ g.$ What is the total mass of $14 $ such bricks$?$
View full solution →How much money was collected from $1786$ students of a school for a charity show if each student contributed $Rs. 625?$
View full solution →Round off the following to the nearest thousand:
$4368$
View full solution →Write the successor and predecessor of $999999$ and find their difference.
View full solution →Find the difference between the place values of the two nines in $79520986.$
View full solution →Arrange the following numbers in descending order: $54796203, 4675238, 63240613, 5125648, 589623$
View full solution →Write the Hindu-Arabic numeral for each of the following:
| S.No. |
Roman numeral |
| $i$ |
$CCXLII$ |
| $ii$ |
$CDLXV$ |
| $iii$ |
$LXXVI$ |
| $iv$ |
$DCCXLI$ |
| $v$ |
$XCIV$ |
| $vi$ |
$CXCIX$ |
View full solution →Write the largest and smallest numbes using each of the digits $1, 4, 6, 8, 0$ only once and find their difference.
View full solution →Arrange the following numbers in ascending order: $700087, 8014257, 8015032, 10012458, 8014306$
View full solution →Arrange the following numbers in ascending order: $3903216, 19430124, 864572, 6940513, 16531079$
View full solution →Express each of the following as a Roman numeral:
|
S.No.
|
Numerical
|
|
$i$
|
$164$
|
|
$ii$
|
$195$
|
|
$iii$
|
$226$
|
|
$iv$
|
$341$
|
|
$v$
|
$475$
|
|
$vi$
|
$596$
|
|
$vii$
|
$611$
|
|
$viii$
|
$759$
|
View full solution →Show that each of the following is meaningless. Give reason in each case.
$i.\ VC$
$ii.\ IL$
$iii.\ VVII$
$iv.\ IXX$
View full solution →Arrange the following numbers in ascending order: $1020304, 893245, 980134, 1021403, 893425, 1020216$
View full solution →Arrange the following numbers in descending order: $63521047, 7354206, 63514759, 7355014, 102345680$
View full solution →Arrange the following numbers in descending order: $5032786, 23794206, 5032790, 23756819, 987876$
View full solution →The population of the state of Madhya Pradesh in 2019 was 8,45,16,795. In 2021. its population increased to 8,75,58,507.
1. The population of Madhya Pradesh in 2019, written in words is
(a) eighty-four lakh five hundred sixteen thousand seven hundred ninety-five
(b) eight crore forty-five lakh sixteen thousand seven hundred ninety-five
(c) eight hundred forty-five lakh sixteen thousand seven hundred ninety-five
(d) eight crore four hundred fifty-one lakh six thousand seven hundred ninety-five
2. Find the increase in the population (in words) of Madhya Pradesh from 2019 to 2021.
(a) Three lakh forty-one thousand seven hundred ten
(b) Three lakh four thousand seventeen hundred ten
(c) Thirty lakh forty-one thousand seven hundred ten
(d) Thirty lakh four thousand one hundred seventy-one
3. The place value of 1 in 84516795 is
(a) 10000$\quad$(b) 16795$\quad$(c) 6795$\quad$(d) 1000
4. The population of Madhya Pradesh in 2021, rounded to the nearest thousand is
(a) 87560000$\quad$(b) 87558000$\quad$(c) 87550000$\quad$(d) 87559000
View full solution →Raman's grandfather passed away leaving behind a sum of rupees fifty-five lakh for him. Raman called his friend Shane who lives in Australia.
1. The amount received by Raman in numerals is
(a) 550000$\quad$(b) 5500000$\quad$(c) 55000$\quad$(d) 55000000
2. International number system is adopted in Australia. What is the amount in this system ?
(a) Fifty-five million
(b) Five hundred fifty million
(c) Five million five hundred thousand
(d) Five million fifty thousand
3. If each Australian dollar is equivalent to 55, what amount did Raman receive in Australian dollars ?
(a) Hundred thousand dollars
(b) One million dollars
(c) Ten thousand dollars
(d) Ten million dollars
4. How is one crore written in the international number system ?
(a) One million$\quad$(b) Hundred thousand$\quad$(c) Hundred million$\quad$(d) Ten million
View full solution →